abandoned experiment

Draw fixes

.eslintignore

@@ -0,0 +1,17 @@
+krill-parser.js
+krill.pegjs
+.eslintrc.json
+server.js
+tidal-sniffer.js
+*.jsx
+tunejs.js
+out/**
+postcss.config.js
+postcss.config.cjs
+tailwind.config.js
+tailwind.config.cjs
+vite.config.js
+/**/dist/**/*
+!**/*.mjs
+**/*.tsx
+**/*.ts

.eslintrc.json

@@ -0,0 +1,16 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true
+  },
+  "extends": ["eslint:recommended"],
+  "overrides": [],
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "plugins": [],
+  "rules": {
+    "no-unused-vars": ["warn", { "destructuredArrayIgnorePattern": ".", "ignoreRestSiblings": false }]
+  }
+}

.github/workflows/deploy.yml

@@ -0,0 +1,46 @@
+name: Build and Deploy
+
+on: [workflow_dispatch]
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+  deployments: write
+
+# Allow one concurrent deployment
+concurrency:
+  group: "pages"
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: "npm"
+      - name: Install Dependencies
+        run: npm ci && cd website && npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v2
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v1
+        with:
+          # Upload entire repository
+          path: "./website/dist"
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v1

.github/workflows/test.yml

@@ -7,13 +7,15 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [16, 17]
+        node-version: [18]
 
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-node@v3
-      with:
-        node-version: ${{ matrix.node-version }}
-        cache: 'npm'
-    - run: npm install
-    - run: npm test
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: "npm"
+      - run: npm install
+      - run: npm run format-check
+      - run: npm run lint
+      - run: npm test

.gitignore

@@ -34,4 +34,7 @@ repl_old
 tutorial.rendered.mdx
 doc.json
 talk/public/EmuSP12
-talk/public/samples
+talk/public/samples
+server/samples/old
+repl/stats.html
+coverage

.prettierignore

@@ -0,0 +1,9 @@
+*.md
+*.json
+*.yml
+*.
+**/out
+**/dist
+packages/mini/krill-parser.js
+packages/xen/tunejs.js
+paper

.prettierrc

@@ -1,16 +1,15 @@
 {
-    "printWidth": 120,
-    "useTabs": false,
-    "tabWidth": 2,
-    "semi": true,
-    "singleQuote": true,
-    "jsxSingleQuote": false,
-    "trailingComma": "all",
-    "bracketSpacing": true,
-    "jsxBracketSameLine": false,
-    "arrowParens": "always",
-    "proseWrap": "preserve",
-    "htmlWhitespaceSensitivity": "css",
-    "endOfLine": "lf"
-  }
-  
+  "printWidth": 120,
+  "useTabs": false,
+  "tabWidth": 2,
+  "semi": true,
+  "singleQuote": true,
+  "jsxSingleQuote": false,
+  "trailingComma": "all",
+  "bracketSpacing": true,
+  "jsxBracketSameLine": false,
+  "arrowParens": "always",
+  "proseWrap": "preserve",
+  "htmlWhitespaceSensitivity": "css",
+  "endOfLine": "lf"
+}

.vscode/settings.json

@@ -2,5 +2,9 @@
     "cSpell.words": [
         "subspan",
         "vals"
-    ]
+    ],
+    "yaml.schemas": {
+      "https://json.schemastore.org/github-workflow.json": "file:///home/felix/projects/strudel/.github/workflows/deploy.yml"
+    },
+    "testing.automaticallyOpenPeekView": "never"
 }

CONTRIBUTING.md

@@ -12,8 +12,8 @@ To get in touch with the contributors, either
 
 ## Ask a Question
 
-If you have any questions about strudel, make sure you've read the 
-[tutorial](https://strudel.tidalcycles.org/tutorial/) to find out if it answers your question.
+If you have any questions about strudel, make sure you've glanced through the
+[docs](https://strudel.tidalcycles.org/learn/) to find out if it answers your question.
 If not, use one of the Communication Channels above!
 
 Don't be afraid to ask! Your question might be of great value for other people too.
@@ -29,13 +29,10 @@ If you made some music with strudel, you can give back some love and share what
 Your creation could also be part of the random selection in the REPL if you want.
 Use one of the Communication Channels listed above.
 
-## Improve the Tutorial
+## Improve the Docs
 
-If you find some weak spots in the [tutorial](https://strudel.tidalcycles.org/), 
-you are welcome to improve them by editing [this file](https://github.com/tidalcycles/strudel/blob/main/tutorial/tutorial.mdx).
-
-
-This will even work without setting up a development environment, only a github account is required.
+If you find some weak spots in the [docs](https://strudel.tidalcycles.org/learn/getting-started),
+you can edit each file directly on github via the "Edit this page" link located in the right sidebar.
 
 ## Propose a Feature
 
@@ -52,11 +49,11 @@ Please check that it has not been reported before.
 To fix a bug that has been reported,
 
 1. check that nobody else is already fixing it and respond to the issue to let people know you're on it
-3. fork the repository
-4. make sure you've setup the project (see below)
-5. hopefully fix the bug
-6. make sure the tests pass
-7. send a pull request
+2. fork the repository
+3. make sure you've setup the project (see below)
+4. hopefully fix the bug
+5. make sure the tests pass
+6. send a pull request
 
 ## Write Tests
 
@@ -80,7 +77,7 @@ cd repl && npm i # install repl dependencies
 npm run start # start repl
 ```
 
-Those commands might look slightly different for your OS. 
+Those commands might look slightly different for your OS.
 Please report any problems you've had with the setup instructions!
 
 ## Code Style
@@ -97,7 +94,7 @@ If you use VSCode, you can
 
 The project is split into multiple [packages](https://github.com/tidalcycles/strudel/tree/main/packages) with independent versioning.
 When you run `npm i` on the root folder, [npm workspaces](https://docs.npmjs.com/cli/v7/using-npm/workspaces) will symlink all packages
-in the `node_modules` folder. This will allow any js file to import `@strudel.cycles/<package-name>` to get the local version, 
+in the `node_modules` folder. This will allow any js file to import `@strudel.cycles/<package-name>` to get the local version,
 which allows developing multiple packages at the same time
 
 ## Package Publishing
@@ -105,9 +102,18 @@ which allows developing multiple packages at the same time
 To publish all packages that have been changed since the last release, run:
 
 ```sh
+npm login
 npx lerna publish
 ```
 
+### New Packages
+
+To add a new package, you have to publish it manually the first time, using:
+
+```sh
+cd packages/<package-name> && npm publish --access public
+```
+
 ## Have Fun
 
 Remember to have fun, and that this project is driven by the passion of volunteers!

README.md

@@ -5,7 +5,7 @@
 An experiment in making a [Tidal](https://github.com/tidalcycles/tidal/) using web technologies. This software is slowly stabilising, but please continue to tread carefully.
 
 - Try it here: <https://strudel.tidalcycles.org/>
-- Tutorial: <https://strudel.tidalcycles.org/tutorial/>
+- Docs: <https://strudel.tidalcycles.org/learn/>
 - Technical Blog Post: <https://loophole-letters.vercel.app/strudel>
 
 ## Running Locally
@@ -38,6 +38,12 @@ Click on the package names to find out more about each one.
 
 There are many ways to contribute to this project! See [contribution guide](./CONTRIBUTING.md).
 
+<a href="https://github.com/tidalcycles/strudel/graphs/contributors">
+  <img src="https://contrib.rocks/image?repo=tidalcycles/strudel" />
+</a>
+
+Made with [contrib.rocks](https://contrib.rocks).
+
 ## Community
 
 There is a #strudel channel on the TidalCycles discord: <https://discord.com/invite/HGEdXmRkzT>

index.mjs

@@ -0,0 +1,17 @@
+// this barrel export is currently only used to find undocumented exports
+export * from './packages/core/index.mjs';
+export * from './packages/csound/index.mjs';
+export * from './packages/embed/index.mjs';
+export * from './packages/eval/index.mjs';
+export * from './packages/midi/index.mjs';
+export * from './packages/mini/index.mjs';
+export * from './packages/osc/index.mjs';
+export * from './packages/react/index.mjs';
+export * from './packages/serial/index.mjs';
+export * from './packages/soundfonts/index.mjs';
+export * from './packages/tonal/index.mjs';
+export * from './packages/tone/index.mjs';
+export * from './packages/transpiler/index.mjs';
+export * from './packages/webaudio/index.mjs';
+export * from './packages/webdirt/index.mjs';
+export * from './packages/xen/index.mjs';

jsdoc.config.json

@@ -1,7 +1,7 @@
 {
   "source": {
     "includePattern": ".+\\.(js(doc|x)?|mjs)$",
-    "excludePattern": "node_modules|shift-parser|shift-reducer|shift-traverser"
+    "excludePattern": "node_modules|shift-parser|shift-reducer|shift-traverser|dist"
   },
   "plugins": ["plugins/markdown"],
   "opts": {

my-patterns/README.md

@@ -0,0 +1,20 @@
+# my-patterns
+
+This directory can be used to save your own patterns, which then get
+made into a pattern swatch.
+
+0. fork and clone the strudel repository
+1. run `npm run setup` in the strudel folder
+1. Save one or more .txt files in this folder
+2. run `npm run repl` in the top-level strudel folder
+3. open `http://localhost:3000/swatch/` !
+
+## deploy
+
+1. in your fork, go to settings -> pages and select "Github Actions" as source
+2. edit `website/public/CNAME` to contain `<your-username>.github.io/strudel`
+3. edit `website/astro.config.mjs` to use site: `https://<your-username>.github.io` and base `/strudel`
+4. go to Actions -> `Build and Deploy` and click `Run workflow`
+5. view your patterns at `<your-username>.github.io/strudel/swatch/`
+
+Alternatively, github pages allows you to use a custom domain, like https://mycooldomain.org/swatch/. [See their documentation for details](https://docs.github.com/en/pages/configuring-a-custom-domain-for-your-github-pages-site).

package.json

@@ -1,20 +1,30 @@
 {
   "name": "@strudel.cycles/monorepo",
-  "version": "0.0.1",
+  "version": "0.5.0",
   "private": true,
   "description": "Port of tidalcycles to javascript",
   "scripts": {
-    "test": "npm run test --workspaces --if-present && cd repl && npm run test",
+    "pretest": "npm run jsdoc-json",
+    "prebuild": "npm run jsdoc-json",
+    "test": "vitest run --version",
+    "test-ui": "vitest --ui",
+    "test-coverage": "vitest --coverage",
     "bootstrap": "lerna bootstrap",
-    "setup": "npm i && npm run bootstrap && cd repl && npm i && cd ../tutorial && npm i",
-    "snapshot": "cd repl && npm run snapshot",
-    "repl": "cd repl && npm run dev",
+    "setup": "npm i && npm run jsdoc-json && npm run bootstrap && cd website && npm i",
+    "snapshot": "vitest run -u --silent",
+    "repl": "cd website && npm run dev",
     "osc": "cd packages/osc && npm run server",
-    "build": "rm -rf out && cd repl && npm run build && cd ../tutorial && npm run build",
-    "preview": "npx serve ./out",
-    "deploy": "gh-pages -d out",
+    "build": "cd website && npm run build",
+    "preview": "cd website && npm run preview",
+    "deploy": "NODE_DEBUG=gh-pages gh-pages -d out",
     "jsdoc": "jsdoc packages/ -c jsdoc.config.json",
-    "jsdoc-json": "jsdoc packages/ --template ./node_modules/jsdoc-json --destination doc.json -c jsdoc.config.json"
+    "jsdoc-json": "jsdoc packages/ --template ./node_modules/jsdoc-json --destination doc.json -c jsdoc.config.json",
+    "lint": "eslint . --ext mjs,js --quiet",
+    "codeformat": "prettier --write .",
+    "format-check": "prettier --check .",
+    "report-undocumented": "npm run jsdoc-json && node undocumented.mjs > undocumented.json",
+    "check": "npm run format-check && npm run lint && npm run test",
+    "iclc": "cd paper && pandoc --template=pandoc/iclc.html --citeproc  --number-sections iclc2023.md -o iclc2023.html && pandoc --template=pandoc/iclc.latex --citeproc --number-sections iclc2023.md -o iclc2023.pdf"
   },
   "workspaces": [
     "packages/*"
@@ -37,12 +47,19 @@
   },
   "homepage": "https://strudel.tidalcycles.org",
   "devDependencies": {
+    "@vitest/ui": "^0.25.7",
+    "c8": "^7.12.0",
+    "canvas": "^2.11.0",
+    "dependency-tree": "^9.0.0",
+    "eslint": "^8.28.0",
     "events": "^3.3.0",
     "gh-pages": "^4.0.0",
     "jsdoc": "^3.6.10",
     "jsdoc-json": "^2.0.2",
     "jsdoc-to-markdown": "^7.1.1",
     "lerna": "^4.0.0",
-    "mocha": "^9.1.4"
+    "prettier": "^2.8.1",
+    "rollup-plugin-visualizer": "^5.8.1",
+    "vitest": "^0.25.7"
   }
 }

packages/README.md

@@ -0,0 +1,15 @@
+# Packages
+
+Each folder represents one of the @strudel.cycles/* packages [published to npm](https://www.npmjs.com/org/strudel.cycles).
+
+To understand how those pieces connect, refer to the [Technical Manual](https://github.com/tidalcycles/strudel/wiki/Technical-Manual) or the individual READMEs.
+
+This is a graphical view of all the packages: [full screen](https://raw.githubusercontent.com/tidalcycles/strudel/main/dependencies.svg)
+
+![dependencies](https://raw.githubusercontent.com/tidalcycles/strudel/main/dependencies.svg)
+
+Generated with
+
+```sh
+npx depcruise --include-only "^packages" -X "node_modules" --output-type dot packages | dot -T svg > dependencygraph.svg
+```

packages/core/.npmignore

@@ -0,0 +1 @@
+examples

packages/core/animate.mjs

@@ -0,0 +1,67 @@
+import { controls, Pattern, getDrawContext, silence, register, pure } from './index.mjs';
+const { createParams } = controls;
+
+let clearColor = '#22222210';
+
+Pattern.prototype.animate = function ({ callback, sync = false, smear = 0.5 } = {}) {
+  window.frame && cancelAnimationFrame(window.frame);
+  const ctx = getDrawContext();
+  const { clientWidth: ww, clientHeight: wh } = ctx.canvas;
+  let smearPart = smear === 0 ? '99' : Number((1 - smear) * 100).toFixed(0);
+  smearPart = smearPart.length === 1 ? `0${smearPart}` : smearPart;
+  clearColor = `#200010${smearPart}`;
+  const render = (t) => {
+    let frame;
+    /*     if (sync) {
+      t = scheduler.now();
+      frame = this.queryArc(t, t);
+    } else { */
+    t = Math.round(t);
+    frame = this.slow(1000).queryArc(t, t);
+    // }
+    ctx.fillStyle = clearColor;
+    ctx.fillRect(0, 0, ww, wh);
+    frame.forEach((f) => {
+      let { x, y, w, h, s, r, a = 0, fill = 'darkseagreen' } = f.value;
+      w *= ww;
+      h *= wh;
+      if (r !== undefined && a !== undefined) {
+        const radians = a * 2 * Math.PI;
+        const [cx, cy] = [(ww - w) / 2, (wh - h) / 2];
+        x = cx + Math.cos(radians) * r * cx;
+        y = cy + Math.sin(radians) * r * cy;
+      } else {
+        x *= ww - w;
+        y *= wh - h;
+      }
+      const val = { ...f.value, x, y, w, h };
+      ctx.fillStyle = fill;
+      if (s === 'rect') {
+        ctx.fillRect(x, y, w, h);
+      } else if (s === 'ellipse') {
+        ctx.beginPath();
+        ctx.ellipse(x + w / 2, y + h / 2, w / 2, h / 2, 0, 0, 2 * Math.PI);
+        ctx.fill();
+      }
+      callback && callback(ctx, val, f);
+    });
+    window.frame = requestAnimationFrame(render);
+  };
+  window.frame = requestAnimationFrame(render);
+  return silence;
+};
+
+export const { x, y, w, h, a, r, fill, smear } = createParams('x', 'y', 'w', 'h', 'a', 'r', 'fill', 'smear');
+
+export const rescale = register('rescale', function (f, pat) {
+  return pat.mul(x(f).w(f).y(f).h(f));
+});
+
+export const moveXY = register('moveXY', function (dx, dy, pat) {
+  return pat.add(x(dx).y(dy));
+});
+
+export const zoomIn = register('zoomIn', function (f, pat) {
+  const d = pure(1).sub(f).div(2);
+  return pat.rescale(f).move(d, d);
+});

packages/core/color.mjs

@@ -0,0 +1,175 @@
+export const colorMap = {
+  aliceblue: '#f0f8ff',
+  antiquewhite: '#faebd7',
+  aqua: '#00ffff',
+  aquamarine: '#7fffd4',
+  azure: '#f0ffff',
+  beige: '#f5f5dc',
+  bisque: '#ffe4c4',
+  black: '#000000',
+  blanchedalmond: '#ffebcd',
+  blue: '#0000ff',
+  blueviolet: '#8a2be2',
+  brown: '#a52a2a',
+  burlywood: '#deb887',
+  cadetblue: '#5f9ea0',
+  chartreuse: '#7fff00',
+  chocolate: '#d2691e',
+  coral: '#ff7f50',
+  cornflowerblue: '#6495ed',
+  cornsilk: '#fff8dc',
+  crimson: '#dc143c',
+  cyan: '#00ffff',
+  darkblue: '#00008b',
+  darkcyan: '#008b8b',
+  darkgoldenrod: '#b8860b',
+  darkgray: '#a9a9a9',
+  darkgreen: '#006400',
+  darkgrey: '#a9a9a9',
+  darkkhaki: '#bdb76b',
+  darkmagenta: '#8b008b',
+  darkolivegreen: '#556b2f',
+  darkorange: '#ff8c00',
+  darkorchid: '#9932cc',
+  darkred: '#8b0000',
+  darksalmon: '#e9967a',
+  darkseagreen: '#8fbc8f',
+  darkslateblue: '#483d8b',
+  darkslategray: '#2f4f4f',
+  darkslategrey: '#2f4f4f',
+  darkturquoise: '#00ced1',
+  darkviolet: '#9400d3',
+  deeppink: '#ff1493',
+  deepskyblue: '#00bfff',
+  dimgray: '#696969',
+  dimgrey: '#696969',
+  dodgerblue: '#1e90ff',
+  firebrick: '#b22222',
+  floralwhite: '#fffaf0',
+  forestgreen: '#228b22',
+  fuchsia: '#ff00ff',
+  gainsboro: '#dcdcdc',
+  ghostwhite: '#f8f8ff',
+  gold: '#ffd700',
+  goldenrod: '#daa520',
+  gray: '#808080',
+  green: '#008000',
+  greenyellow: '#adff2f',
+  grey: '#808080',
+  honeydew: '#f0fff0',
+  hotpink: '#ff69b4',
+  indianred: '#cd5c5c',
+  indigo: '#4b0082',
+  ivory: '#fffff0',
+  khaki: '#f0e68c',
+  lavender: '#e6e6fa',
+  lavenderblush: '#fff0f5',
+  lawngreen: '#7cfc00',
+  lemonchiffon: '#fffacd',
+  lightblue: '#add8e6',
+  lightcoral: '#f08080',
+  lightcyan: '#e0ffff',
+  lightgoldenrodyellow: '#fafad2',
+  lightgray: '#d3d3d3',
+  lightgreen: '#90ee90',
+  lightgrey: '#d3d3d3',
+  lightpink: '#ffb6c1',
+  lightsalmon: '#ffa07a',
+  lightseagreen: '#20b2aa',
+  lightskyblue: '#87cefa',
+  lightslategray: '#778899',
+  lightslategrey: '#778899',
+  lightsteelblue: '#b0c4de',
+  lightyellow: '#ffffe0',
+  lime: '#00ff00',
+  limegreen: '#32cd32',
+  linen: '#faf0e6',
+  magenta: '#ff00ff',
+  maroon: '#800000',
+  mediumaquamarine: '#66cdaa',
+  mediumblue: '#0000cd',
+  mediumorchid: '#ba55d3',
+  mediumpurple: '#9370db',
+  mediumseagreen: '#3cb371',
+  mediumslateblue: '#7b68ee',
+  mediumspringgreen: '#00fa9a',
+  mediumturquoise: '#48d1cc',
+  mediumvioletred: '#c71585',
+  midnightblue: '#191970',
+  mintcream: '#f5fffa',
+  mistyrose: '#ffe4e1',
+  moccasin: '#ffe4b5',
+  navajowhite: '#ffdead',
+  navy: '#000080',
+  oldlace: '#fdf5e6',
+  olive: '#808000',
+  olivedrab: '#6b8e23',
+  orange: '#ffa500',
+  orangered: '#ff4500',
+  orchid: '#da70d6',
+  palegoldenrod: '#eee8aa',
+  palegreen: '#98fb98',
+  paleturquoise: '#afeeee',
+  palevioletred: '#db7093',
+  papayawhip: '#ffefd5',
+  peachpuff: '#ffdab9',
+  peru: '#cd853f',
+  pink: '#ffc0cb',
+  plum: '#dda0dd',
+  powderblue: '#b0e0e6',
+  purple: '#800080',
+  red: '#ff0000',
+  rosybrown: '#bc8f8f',
+  royalblue: '#4169e1',
+  saddlebrown: '#8b4513',
+  salmon: '#fa8072',
+  sandybrown: '#f4a460',
+  seagreen: '#2e8b57',
+  seashell: '#fff5ee',
+  sienna: '#a0522d',
+  silver: '#c0c0c0',
+  skyblue: '#87ceeb',
+  slateblue: '#6a5acd',
+  slategray: '#708090',
+  slategrey: '#708090',
+  snow: '#fffafa',
+  springgreen: '#00ff7f',
+  steelblue: '#4682b4',
+  tan: '#d2b48c',
+  teal: '#008080',
+  thistle: '#d8bfd8',
+  tomato: '#ff6347',
+  turquoise: '#40e0d0',
+  violet: '#ee82ee',
+  wheat: '#f5deb3',
+  white: '#ffffff',
+  whitesmoke: '#f5f5f5',
+  yellow: '#ffff00',
+  yellowgreen: '#9acd32',
+};
+
+export function convertColorToNumber(color) {
+  // Convert color to lowercase for easier matching
+  color = color.toLowerCase();
+
+  // If the color is a hex code, convert it to a number
+  if (color[0] === '#') {
+    return convertHexToNumber(color);
+  }
+
+  // If the color is a named color, return the corresponding number
+  if (colorMap[color] !== undefined) {
+    return convertHexToNumber(colorMap[color]);
+  }
+
+  // If the color is not recognized, return null
+  return -1;
+}
+
+export function convertHexToNumber(hex) {
+  // Remove the leading '#' from the hex code
+  hex = hex.slice(1);
+
+  // Convert the hex code to a number
+  return parseInt(hex, 16);
+}

packages/core/controls.mjs

@@ -11,7 +11,7 @@ const generic_params = [
   /**
    * Select a sound / sample by name.
    *
-   * <details>
+   * <details style={{display:'none'}}>
    * <summary>show all sounds</summary>
    *
    * 808 (6) 808bd (25) 808cy (25) 808hc (5) 808ht (5) 808lc (5) 808lt (5) 808mc (5) 808mt (5) 808oh (5) 808sd (25) 909 (1) ab (12) ade (10) ades2 (9) ades3 (7) ades4 (6) alex (2) alphabet (26) amencutup (32) armora (7) arp (2) arpy (11) auto (11) baa (7) baa2 (7) bass (4) bass0 (3) bass1 (30) bass2 (5) bass3 (11) bassdm (24) bassfoo (3) battles (2) bd (24) bend (4) bev (2) bin (2) birds (10) birds3 (19) bleep (13) blip (2) blue (2) bottle (13) breaks125 (2) breaks152 (1) breaks157 (1) breaks165 (1) breath (1) bubble (8) can (14) casio (3) cb (1) cc (6) chin (4) circus (3) clak (2) click (4) clubkick (5) co (4) coins (1) control (2) cosmicg (15) cp (2) cr (6) crow (4) d (4) db (13) diphone (38) diphone2 (12) dist (16) dork2 (4) dorkbot (2) dr (42) dr2 (6) dr55 (4) dr_few (8) drum (6) drumtraks (13) e (8) east (9) electro1 (13) em2 (6) erk (1) f (1) feel (7) feelfx (8) fest (1) fire (1) flick (17) fm (17) foo (27) future (17) gab (10) gabba (4) gabbaloud (4) gabbalouder (4) glasstap (3) glitch (8) glitch2 (8) gretsch (24) gtr (3) h (7) hand (17) hardcore (12) hardkick (6) haw (6) hc (6) hh (13) hh27 (13) hit (6) hmm (1) ho (6) hoover (6) house (8) ht (16) if (5) ifdrums (3) incoming (8) industrial (32) insect (3) invaders (18) jazz (8) jungbass (20) jungle (13) juno (12) jvbass (13) kicklinn (1) koy (2) kurt (7) latibro (8) led (1) less (4) lighter (33) linnhats (6) lt (16) made (7) made2 (1) mash (2) mash2 (4) metal (10) miniyeah (4) monsterb (6) moog (7) mouth (15) mp3 (4) msg (9) mt (16) mute (28) newnotes (15) noise (1) noise2 (8) notes (15) numbers (9) oc (4) odx (15) off (1) outdoor (6) pad (3) padlong (1) pebbles (1) perc (6) peri (15) pluck (17) popkick (10) print (11) proc (2) procshort (8) psr (30) rave (8) rave2 (4) ravemono (2) realclaps (4) reverbkick (1) rm (2) rs (1) sax (22) sd (2) seawolf (3) sequential (8) sf (18) sheffield (1) short (5) sid (12) sine (6) sitar (8) sn (52) space (18) speakspell (12) speech (7) speechless (10) speedupdown (9) stab (23) stomp (10) subroc3d (11) sugar (2) sundance (6) tabla (26) tabla2 (46) tablex (3) tacscan (22) tech (13) techno (7) tink (5) tok (4) toys (13) trump (11) ul (10) ulgab (5) uxay (3) v (6) voodoo (5) wind (10) wobble (1) world (3) xmas (1) yeah (31)
@@ -23,7 +23,7 @@ const generic_params = [
    * @name s
    * @param {string | Pattern} sound The sound / pattern of sounds to pick
    * @example
-   * s("bd hh").osc()
+   * s("bd hh")
    *
    */
   ['s', 's', 'sound'],
@@ -40,11 +40,6 @@ const generic_params = [
    * @example
    * n("0 1 2 3").s('east').osc()
    */
-  // TODO: nOut does not work
-  // TODO: notes don't work as expected
-  // current "workaround" for notes:
-  // s('superpiano').n("<c0 d0 e0 g0>"._asNumber()).osc()
-  // -> .n or .osc (or .superdirt) would need to convert note strings to numbers
   // also see https://github.com/tidalcycles/strudel/pull/63
   ['f', 'n', 'The note or sample number to choose for a synth or sampleset'],
   ['f', 'note', 'The note or pitch to play a sound or synth with'],
@@ -56,18 +51,19 @@ const generic_params = [
    *
    * @name accelerate
    * @param {number | Pattern} amount acceleration.
+   * @superdirtOnly
    * @example
    * s("sax").accelerate("<0 1 2 4 8 16>").slow(2).osc()
    *
    */
   ['f', 'accelerate', 'a pattern of numbers that speed up (or slow down) samples while they play.'],
   /**
-   * Like {@link amp}, but exponential.
+   * Controls the gain by an exponential amount.
    *
    * @name gain
    * @param {number | Pattern} amount gain.
    * @example
-   * s("bd*8").gain(".7*2 1 .7*2 1 .7 1").osc()
+   * s("hh*8").gain(".4!2 1 .4!2 1 .4 1")
    *
    */
   [
@@ -80,19 +76,20 @@ const generic_params = [
    *
    * @name amp
    * @param {number | Pattern} amount gain.
+   * @superdirtOnly
    * @example
    * s("bd*8").amp(".1*2 .5 .1*2 .5 .1 .5").osc()
    *
    */
   ['f', 'amp', 'like @gain@, but linear.'],
-  // TODO: find out why 0 does not work, and it generally seems not right
-  /*
+  /**
    * A pattern of numbers to specify the attack time of an envelope applied to each sample.
+   * [More info about envelopes](/learn/synths-samples-effects/#envelope)
    *
    * @name attack
    * @param {number | Pattern} attack time in seconds.
    * @example
-   * n("c5 e5").s('superpiano').attack("<0 .1>").osc()
+   * note("c3 e3").attack("<0 .1 .5>")
    *
    */
   [
@@ -100,18 +97,48 @@ const generic_params = [
     'attack',
     'a pattern of numbers to specify the attack time (in seconds) of an envelope applied to each sample.',
   ],
-  // TODO: find out how this works?
-  /*
-   * Envelope decay time = the time it takes after the attack time to reach the sustain level.
+
+  /**
+   * Select the sound bank to use. To be used together with `s`. The bank name (+ "_") will be prepended to the value of `s`.
+   *
+   * @name bank
+   * @param {string | Pattern} bank the name of the bank
+   * @example
+   * s("bd sd").bank('RolandTR909') // = s("RolandTR909_bd RolandTR909_sd")
+   *
+   */
+  ['f', 'bank', 'selects sound bank to use'],
+
+  /**
+   * Gain envelope decay time = the time it takes after the attack time to reach the sustain level.
+   * [More info about envelopes](/learn/synths-samples-effects/#envelope)
    *
    * @name decay
    * @param {number | Pattern} time decay time in seconds
    * @example
-   * s("sax").cut(1).decay("<.1 .2 .3 .4>").sustain(0).osc()
+   * note("c3 e3").decay("<.1 .2 .3 .4>").sustain(0)
    *
    */
   ['f', 'decay', ''],
+  /**
+   * Gain envelope sustain level. [More info about envelopes](/learn/synths-samples-effects/#envelope)
+   *
+   * @name sustain
+   * @param {number | Pattern} gain sustain level between 0 and 1
+   * @example
+   * note("c3 e3").decay(.2).sustain("<0 .1 .4 .6 1>")
+   *
+   */
   ['f', 'sustain', ''],
+  /**
+   * Gain envelope release time. [More info about envelopes](/learn/synths-samples-effects/#envelope)
+   *
+   * @name release
+   * @param {number | Pattern} time release time in seconds
+   * @example
+   * note("c3 e3 g3 c4").release("<0 .1 .4 .6 1>/2")
+   *
+   */
   [
     'f',
     'release',
@@ -128,29 +155,35 @@ const generic_params = [
    *
    * @name bandf
    * @param {number | Pattern} frequency center frequency
+   * @synonyms bpf
    * @example
-   * s("bd sd").bandf("<1000 2000 4000 8000>").osc()
+   * s("bd sd,hh*3").bandf("<1000 2000 4000 8000>")
    *
    */
   ['f', 'bandf', 'A pattern of numbers from 0 to 1. Sets the center frequency of the band-pass filter.'],
+  ['f', 'bpf', ''],
   // TODO: in tidal, it seems to be normalized
   /**
    * Sets the q-factor of the band-pass filter
    *
    * @name bandq
    * @param {number | Pattern} q q factor
+   * @synonyms bpq
    * @example
-   * s("bd sd").bandf(2000).bandq("<.2 .9>").osc()
+   * s("bd sd").bandf(500).bandq("<0 1 2 3>")
    *
    */
   ['f', 'bandq', 'a pattern of anumbers from 0 to 1. Sets the q-factor of the band-pass filter.'],
+  ['f', 'bpq', ''],
   /**
    * a pattern of numbers from 0 to 1. Skips the beginning of each sample, e.g. `0.25` to cut off the first quarter from each sample.
    *
+   * @memberof Pattern
    * @name begin
    * @param {number | Pattern} amount between 0 and 1, where 1 is the length of the sample
    * @example
-   * s("rave").begin("<0 .25 .5 .75>").osc()
+   * samples({ rave: 'rave/AREUREADY.wav' }, 'github:tidalcycles/Dirt-Samples/master/')
+   * s("rave").begin("<0 .25 .5 .75>")
    *
    */
   [
@@ -159,12 +192,13 @@ const generic_params = [
     'a pattern of numbers from 0 to 1. Skips the beginning of each sample, e.g. `0.25` to cut off the first quarter from each sample.',
   ],
   /**
-   * The same as {@link begin}, but cuts off the end off each sample.
+   * The same as .begin, but cuts off the end off each sample.
    *
+   * @memberof Pattern
    * @name end
    * @param {number | Pattern} length 1 = whole sample, .5 = half sample, .25 = quarter sample etc..
    * @example
-   * s("bd*2,ho*4").end("<.1 .2 .5 1>").osc()
+   * s("bd*2,oh*4").end("<.1 .2 .5 1>")
    *
    */
   [
@@ -194,7 +228,7 @@ const generic_params = [
    * "c4 eb4 g4 bb4".legato("<0.125 .25 .5 .75 1 2 4>")
    *
    */
-  ['f', 'legato', 'controls the amount of overlap between two adjacent sounds'],
+  // ['f', 'legato', 'controls the amount of overlap between two adjacent sounds'],
   // ['f', 'clhatdecay', ''],
   /**
    * bit crusher effect.
@@ -202,7 +236,7 @@ const generic_params = [
    * @name crush
    * @param {number | Pattern} depth between 1 (for drastic reduction in bit-depth) to 16 (for barely no reduction).
    * @example
-   * s("<bd sd>,hh*3,jvbass*2").fast(2).crush("<16 8 7 6 5 4 3 2>").osc()
+   * s("<bd sd>,hh*3").fast(2).crush("<16 8 7 6 5 4 3 2>")
    *
    */
   [
@@ -211,12 +245,12 @@ const generic_params = [
     'bit crushing, a pattern of numbers from 1 (for drastic reduction in bit-depth) to 16 (for barely no reduction).',
   ],
   /**
-   * fake-resampling for lowering the sample rate
+   * fake-resampling for lowering the sample rate. Caution: This effect seems to only work in chromium based browsers
    *
    * @name coarse
    * @param {number | Pattern} factor 1 for original 2 for half, 3 for a third and so on.
    * @example
-   * s("xmas").coarse("<1 4 8 16 32>").osc()
+   * s("bd sd,hh*4").coarse("<1 4 8 16 32>")
    *
    */
   [
@@ -239,7 +273,7 @@ const generic_params = [
    * @name cut
    * @param {number | Pattern} group cut group number
    * @example
-   * s("bd sax").cut(1).osc()
+   * s("rd*4").cut(1)
    *
    */
   [
@@ -252,55 +286,52 @@ const generic_params = [
    *
    * @name cutoff
    * @param {number | Pattern} frequency audible between 0 and 20000
+   * @synonyms lpf
    * @example
-   * s("bd,hh*2,<~ sd>").fast(2).cutoff("<4000 2000 1000 500 200 100>").osc()
+   * s("bd sd,hh*3").cutoff("<4000 2000 1000 500 200 100>")
    *
    */
-  // TODO: add lpf synonym
   ['f', 'cutoff', 'a pattern of numbers from 0 to 1. Applies the cutoff frequency of the low-pass filter.'],
+  ['f', 'lpf'],
   /**
    * Applies the cutoff frequency of the high-pass filter.
    *
    * @name hcutoff
    * @param {number | Pattern} frequency audible between 0 and 20000
+   * @synonyms hpf
    * @example
-   * s("bd,hh*2,<~ sd>").fast(2).hcutoff("<4000 2000 1000 500 200 100>").osc()
+   * s("bd sd,hh*4").hcutoff("<4000 2000 1000 500 200 100>")
    *
    */
-  // TODO: add hpf synonym
-  [
-    'f',
-    'hcutoff',
-    'a pattern of numbers from 0 to 1. Applies the cutoff frequency of the high-pass filter. Also has alias @hpf@',
-  ],
+  ['f', 'hcutoff', ''],
+  ['f', 'hpf', ''],
   /**
-   * Applies the cutoff frequency of the high-pass filter.
+   * Applies the resonance of the high-pass filter.
    *
    * @name hresonance
-   * @param {number | Pattern} q resonance factor between 0 and 1
+   * @param {number | Pattern} q resonance factor between 0 and 50
+   * @synonyms hpq
    * @example
-   * s("bd,hh*2,<~ sd>").fast(2).hcutoff(2000).hresonance("<0 .2 .4 .6>").osc()
+   * s("bd sd,hh*4").hcutoff(2000).hresonance("<0 10 20 30>")
    *
    */
-  [
-    'f',
-    'hresonance',
-    'a pattern of numbers from 0 to 1. Applies the resonance of the high-pass filter. Has alias @hpq@',
-  ],
+  ['f', 'hpq', ''],
+  ['f', 'hresonance', ''],
   // TODO: add hpq synonym
   /**
    * Applies the cutoff frequency of the low-pass filter.
    *
    * @name resonance
-   * @param {number | Pattern} q resonance factor between 0 and 1
+   * @param {number | Pattern} q resonance factor between 0 and 50
+   * @synonyms lpq
    * @example
-   * s("bd,hh*2,<~ sd>").fast(2).cutoff(2000).resonance("<0 .2 .4 .6>").osc()
+   * s("bd sd,hh*4").cutoff(2000).resonance("<0 10 20 30>")
    *
    */
-  ['f', 'resonance', 'a pattern of numbers from 0 to 1. Specifies the resonance of the low-pass filter.'],
-  // TODO: add lpq synonym?
+  ['f', 'lpq'],
+  ['f', 'resonance', ''],
   /**
-   * Set detune of oscillators. Works only with some synths, see <a target="_blank" href="https://tidalcycles.org/docs/patternlib/tutorials/synthesizers">tidal doc</a>
+   * DJ filter, below 0.5 is low pass filter, above is high pass filter.
    *
    * @name djf
    * @param {number | Pattern} cutoff below 0.5 is low pass filter, above is high pass filter
@@ -311,17 +342,36 @@ const generic_params = [
   ['f', 'djf', 'DJ filter, below 0.5 is low pass filter, above is high pass filter.'],
   // ['f', 'cutoffegint', ''],
   // TODO: does not seem to work
-  /*
+  /**
    * Sets the level of the delay signal.
    *
    * @name delay
    * @param {number | Pattern} level between 0 and 1
    * @example
-   * s("bd").delay("<0 .5 .75 1>").osc()
+   * s("bd").delay("<0 .25 .5 1>")
    *
    */
   ['f', 'delay', 'a pattern of numbers from 0 to 1. Sets the level of the delay signal.'],
+  /**
+   * Sets the level of the signal that is fed back into the delay.
+   * Caution: Values >= 1 will result in a signal that gets louder and louder! Don't do it
+   *
+   * @name delayfeedback
+   * @param {number | Pattern} feedback between 0 and 1
+   * @example
+   * s("bd").delay(.25).delayfeedback("<.25 .5 .75 1>").slow(2)
+   *
+   */
   ['f', 'delayfeedback', 'a pattern of numbers from 0 to 1. Sets the amount of delay feedback.'],
+  /**
+   * Sets the time of the delay effect.
+   *
+   * @name delaytime
+   * @param {number | Pattern} seconds between 0 and Infinity
+   * @example
+   * s("bd").delay(.25).delaytime("<.125 .25 .5 1>").slow(2)
+   *
+   */
   ['f', 'delaytime', 'a pattern of numbers from 0 to 1. Sets the length of the delay.'],
   /* // TODO: test
    * Specifies whether delaytime is calculated relative to cps.
@@ -368,7 +418,7 @@ const generic_params = [
    * @name fadeTime
    * @param {number | Pattern} time between 0 and 1
    * @example
-   * s("ho*4").end(.1).fadeTime("<0 .2 .4 .8>").osc()
+   * s("oh*4").end(.1).fadeTime("<0 .2 .4 .8>").osc()
    *
    */
   [
@@ -390,7 +440,7 @@ const generic_params = [
    * @example
    * freq("220 110 440 110").s("superzow").osc()
    * @example
-   * freq("110".mulOut(".5 1.5 .6 [2 3]")).s("superzow").osc()
+   * freq("110".mul.out(".5 1.5 .6 [2 3]")).s("superzow").osc()
    *
    */
   ['f', 'freq', ''],
@@ -474,11 +524,15 @@ const generic_params = [
   // ['f', 'ophatdecay', ''],
   // TODO: example
   /**
-   * a pattern of numbers. An `orbit` is a global parameter context for patterns. Patterns with the same orbit will share hardware output bus offset and global effects, e.g. reverb and delay. The maximum number of orbits is specified in the superdirt startup, numbers higher than maximum will wrap around.
+   * An `orbit` is a global parameter context for patterns. Patterns with the same orbit will share the same global effects.
    *
    * @name orbit
    * @param {number | Pattern} number
-   *
+   * @example
+   * stack(
+   *   s("hh*3").delay(.5).delaytime(.25).orbit(1),
+   *   s("~ sd").delay(.5).delaytime(.125).orbit(2)
+   * )
    */
   [
     'i',
@@ -493,7 +547,7 @@ const generic_params = [
    * @name pan
    * @param {number | Pattern} pan between 0 and 1, from left to right (assuming stereo), once round a circle (assuming multichannel)
    * @example
-   * s("[bd hh]*2").pan("<.5 1 .5 0>").osc()
+   * s("[bd hh]*2").pan("<.5 1 .5 0>")
    *
    */
   [
@@ -552,7 +606,7 @@ const generic_params = [
   // TODO: detune? https://tidalcycles.org/docs/patternlib/tutorials/synthesizers/#supersquare
   ['f', 'semitone', ''],
   // TODO: dedup with synth param, see https://tidalcycles.org/docs/reference/synthesizers/#superpiano
-  ['f', 'velocity', ''],
+  // ['f', 'velocity', ''],
   ['f', 'voice', ''], // TODO: synth param
   /**
    * Sets the level of reverb.
@@ -560,27 +614,33 @@ const generic_params = [
    * @name room
    * @param {number | Pattern} level between 0 and 1
    * @example
-   * s("bd sd").room("<0 .2 .4 .6 .8 1>").osc()
+   * s("bd sd").room("<0 .2 .4 .6 .8 1>")
    *
    */
   ['f', 'room', 'a pattern of numbers from 0 to 1. Sets the level of reverb.'],
   /**
    * Sets the room size of the reverb, see {@link room}.
    *
-   * @name size
-   * @param {number | Pattern} size between 0 and 1
+   * @name roomsize
+   * @synonyms size
+   * @param {number | Pattern} size between 0 and 10
    * @example
-   * s("bd sd").room(.8).size("<0 .2 .4 .6 .8 1>").osc()
+   * s("bd sd").room(.8).roomsize("<0 1 2 4 8>")
    *
    */
   // TODO: find out why :
-  // s("bd sd").room(.8).size("<0 .2 .4 .6 .8 [1,0]>").osc()
+  // s("bd sd").room(.8).roomsize("<0 .2 .4 .6 .8 [1,0]>").osc()
   // .. does not work. Is it because room is only one effect?
   [
     'f',
     'size',
     'a pattern of numbers from 0 to 1. Sets the perceptual size (reverb time) of the `room` to be used in reverb.',
   ],
+  [
+    'f',
+    'roomsize',
+    'a pattern of numbers from 0 to 1. Sets the perceptual size (reverb time) of the `room` to be used in reverb.',
+  ],
   // ['f', 'sagogo', ''],
   // ['f', 'sclap', ''],
   // ['f', 'sclaves', ''],
@@ -591,7 +651,7 @@ const generic_params = [
    * @name shape
    * @param {number | Pattern} distortion between 0 and 1
    * @example
-   * s("bd sd").shape("<0 .2 .4 .6 .8 1>").osc()
+   * s("bd sd,hh*4").shape("<0 .2 .4 .6 .8>")
    *
    */
   [
@@ -605,9 +665,9 @@ const generic_params = [
    * @name speed
    * @param {number | Pattern} speed -inf to inf, negative numbers play the sample backwards.
    * @example
-   * s("bd").speed("<1 2 4 1 -2 -4>").osc()
+   * s("bd").speed("<1 2 4 1 -2 -4>")
    * @example
-   * speed("1 1.5*2 [2 1.1]").s("sax").cut(1).osc()
+   * speed("1 1.5*2 [2 1.1]").s("piano").clip(1)
    *
    */
   [
@@ -648,16 +708,16 @@ const generic_params = [
   // ['f', 'tomdecay', ''],
   // ['f', 'vcfegint', ''],
   // ['f', 'vcoegint', ''],
+  // TODO: Use a rest (~) to override the effect <- vowel
   /**
    *
    * Formant filter to make things sound like vowels.
    *
    * @name vowel
-   * @param {string | Pattern} vowel You can use a e i o u. Use a rest (~) to override the effect
+   * @param {string | Pattern} vowel You can use a e i o u.
    * @example
-   * vowel("a e i [o u]").slow(2)
-   * .n("<[0,7]!4 [2,7]!4>")
-   * .s('supersquare').osc()
+   * note("c2 <eb2 <g2 g1>>").s('sawtooth')
+   * .vowel("<a e i <o u>>")
    *
    */
   [
@@ -760,18 +820,28 @@ const _setter = (func, name) =>
   };
 
 generic_params.forEach(([type, name, description]) => {
-  controls[name] = (...pats) => _name(name, ...pats);
+  controls[name] = function (...pats) {
+    const result = _name(name, ...pats);
+
+    // Add a function for composing this control with another pattern
+    result.__as_function = function (pat) {
+      return pat[name](...pats);
+    };
+    return result;
+  };
+  Pattern.__registered.push(name);
   Pattern.prototype[name] = _setter(controls[name], name);
 });
 
 // create custom param
 controls.createParam = (name) => {
   const func = (...pats) => _name(name, ...pats);
+  Pattern.__registered.push(name);
   Pattern.prototype[name] = _setter(func, name);
   return (...pats) => _name(name, ...pats);
 };
 
 controls.createParams = (...names) =>
-  names.reduce((acc, name) => Object.assign(acc, { [name]: createParam(name) }), {});
+  names.reduce((acc, name) => Object.assign(acc, { [name]: controls.createParam(name) }), {});
 
 export default controls;

packages/core/cyclist.mjs

@@ -0,0 +1,87 @@
+/*
+cyclist.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/cyclist.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import createClock from './zyklus.mjs';
+import { logger } from './logger.mjs';
+
+export class Cyclist {
+  constructor({ interval, onTrigger, onToggle, onError, getTime, latency = 0.1 }) {
+    this.started = false;
+    this.cps = 1; // TODO
+    this.phase = 0;
+    this.getTime = getTime;
+    this.onToggle = onToggle;
+    this.latency = latency;
+    const round = (x) => Math.round(x * 1000) / 1000;
+    this.clock = createClock(
+      getTime,
+      (phase, duration, tick) => {
+        if (tick === 0) {
+          this.origin = phase;
+        }
+        const begin = round(phase - this.origin);
+        this.phase = begin - latency;
+        const end = round(begin + duration);
+        const time = getTime();
+        try {
+          const haps = this.pattern.queryArc(begin, end); // get Haps
+          haps.forEach((hap) => {
+            if (hap.part.begin.equals(hap.whole.begin)) {
+              const deadline = hap.whole.begin + this.origin - time + latency;
+              const duration = hap.duration * 1;
+              onTrigger?.(hap, deadline, duration);
+            }
+          });
+        } catch (e) {
+          logger(`[cyclist] error: ${e.message}`);
+          onError?.(e);
+        }
+      }, // called slightly before each cycle
+      interval, // duration of each cycle
+    );
+  }
+  getPhase() {
+    return this.getTime() - this.origin - this.latency;
+  }
+  now() {
+    return this.getTime() - this.origin + this.clock.minLatency;
+  }
+  setStarted(v) {
+    this.started = v;
+    this.onToggle?.(v);
+  }
+  start() {
+    if (!this.pattern) {
+      throw new Error('Scheduler: no pattern set! call .setPattern first.');
+    }
+    logger('[cyclist] start');
+    this.clock.start();
+    this.setStarted(true);
+  }
+  pause() {
+    logger('[cyclist] pause');
+    this.clock.pause();
+    this.setStarted(false);
+  }
+  stop() {
+    logger('[cyclist] stop');
+    this.clock.stop();
+    this.setStarted(false);
+  }
+  setPattern(pat, autostart = false) {
+    this.pattern = pat;
+    if (autostart && !this.started) {
+      this.start();
+    }
+  }
+  setCps(cps = 1) {
+    this.cps = cps;
+  }
+  log(begin, end, haps) {
+    const onsets = haps.filter((h) => h.hasOnset());
+    console.log(`${begin.toFixed(4)} - ${end.toFixed(4)} ${Array(onsets.length).fill('I').join('')}`);
+  }
+}

packages/core/draw.mjs

@@ -4,8 +4,7 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { Tone } from './tone.mjs';
-import { Pattern } from '@strudel.cycles/core';
+import { Pattern, getTime, State, TimeSpan } from './index.mjs';
 
 export const getDrawContext = (id = 'test-canvas') => {
   let canvas = document.querySelector('#' + id);
@@ -28,7 +27,7 @@ Pattern.prototype.draw = function (callback, { from, to, onQuery }) {
   let cycle,
     events = [];
   const animate = (time) => {
-    const t = Tone.getTransport().seconds;
+    const t = getTime();
     if (from !== undefined && to !== undefined) {
       const currentCycle = Math.floor(t);
       if (cycle !== currentCycle) {
@@ -50,9 +49,9 @@ Pattern.prototype.draw = function (callback, { from, to, onQuery }) {
   return this;
 };
 
-export const cleanupDraw = () => {
+export const cleanupDraw = (clearScreen = true) => {
   const ctx = getDrawContext();
-  ctx.clearRect(0, 0, window.innerWidth, window.innerHeight);
+  clearScreen && ctx.clearRect(0, 0, window.innerWidth, window.innerHeight);
   if (window.strudelAnimation) {
     cancelAnimationFrame(window.strudelAnimation);
   }
@@ -60,3 +59,9 @@ export const cleanupDraw = () => {
     clearInterval(window.strudelScheduler);
   }
 };
+
+Pattern.prototype.onPaint = function (onPaint) {
+  // this is evil! TODO: add pattern.context
+  this.context = { onPaint };
+  return this;
+};

packages/core/drawLine.mjs

@@ -21,6 +21,7 @@ import Fraction, { gcd } from './fraction.mjs';
  * @example
  * const line = drawLine("0 [1 2 3]", 10); // |0--123|0--123
  * console.log(line);
+ * silence;
  */
 function drawLine(pat, chars = 60) {
   let cycle = 0;

packages/core/euclid.mjs

@@ -1,95 +1,177 @@
 /*
-euclid.mjs - <short description TODO>
-Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/euclid.mjs>
+euclid.mjs - Bjorklund/Euclidean/Diaspora rhythms
+Copyright (C) 2023 Rohan Drape and strudel contributors
+
+See <https://github.com/tidalcycles/strudel/blob/main/packages/core/euclid.mjs> for authors of this file.
+
+The Bjorklund algorithm implementation is ported from the Haskell Music Theory Haskell module by Rohan Drape -
+https://rohandrape.net/?t=hmt
+
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { Pattern, timeCat } from './pattern.mjs';
-import bjork from 'bjork';
-import { rotate } from './util.mjs';
+import { Pattern, timeCat, register, silence } from './pattern.mjs';
+import { rotate, flatten } from './util.mjs';
 import Fraction from './fraction.mjs';
 
-const euclid = (pulses, steps, rotation = 0) => {
-  const b = bjork(steps, pulses);
+const splitAt = function (index, value) {
+  return [value.slice(0, index), value.slice(index)];
+};
+
+const zipWith = (f, xs, ys) => xs.map((n, i) => f(n, ys[i]));
+
+const left = function (n, x) {
+  const [ons, offs] = n;
+  const [xs, ys] = x;
+  const [_xs, __xs] = splitAt(offs, xs);
+  return [
+    [offs, ons - offs],
+    [zipWith((a, b) => a.concat(b), _xs, ys), __xs],
+  ];
+};
+
+const right = function (n, x) {
+  const [ons, offs] = n;
+  const [xs, ys] = x;
+  const [_ys, __ys] = splitAt(ons, ys);
+  const result = [
+    [ons, offs - ons],
+    [zipWith((a, b) => a.concat(b), xs, _ys), __ys],
+  ];
+  return result;
+};
+
+const _bjork = function (n, x) {
+  const [ons, offs] = n;
+  return Math.min(ons, offs) <= 1 ? [n, x] : _bjork(...(ons > offs ? left(n, x) : right(n, x)));
+};
+
+export const bjork = function (ons, steps) {
+  const offs = steps - ons;
+  const x = Array(ons).fill([1]);
+  const y = Array(offs).fill([0]);
+  const result = _bjork([ons, offs], [x, y]);
+  return flatten(result[1][0]).concat(flatten(result[1][1]));
+};
+
+/**
+ * Changes the structure of the pattern to form an euclidean rhythm.
+ * Euclidian rhythms are rhythms obtained using the greatest common
+ * divisor of two numbers.  They were described in 2004 by Godfried
+ * Toussaint, a canadian computer scientist.  Euclidian rhythms are
+ * really useful for computer/algorithmic music because they can
+ * describe a large number of rhythms with a couple of numbers.
+ *
+ * @memberof Pattern
+ * @name euclid
+ * @param {number} pulses the number of onsets / beats
+ * @param {number} steps the number of steps to fill
+ * @returns Pattern
+ * @example
+ * // The Cuban tresillo pattern.
+ * note("c3").euclid(3,8)
+ */
+
+/**
+ * Like `euclid`, but has an additional parameter for 'rotating' the resulting sequence.
+ * @memberof Pattern
+ * @name euclidRot
+ * @param {number} pulses the number of onsets / beats
+ * @param {number} steps the number of steps to fill
+ * @param {number} rotation offset in steps
+ * @returns Pattern
+ * @example
+ * // A Samba rhythm necklace from Brazil
+ * note("c3").euclidRot(3,16,14)
+ */
+
+/**
+ * @example // A thirteenth century Persian rhythm called Khafif-e-ramal.
+ * note("c3").euclid(2,5)
+ * @example // The archetypal pattern of the Cumbia from Colombia, as well as a Calypso rhythm from Trinidad.
+ * note("c3").euclid(3,4)
+ * @example // Another thirteenth century Persian rhythm by the name of Khafif-e-ramal, as well as a Rumanian folk-dance rhythm.
+ * note("c3").euclidRot(3,5,2)
+ * @example // A Ruchenitza rhythm used in a Bulgarian folk-dance.
+ * note("c3").euclid(3,7)
+ * @example // The Cuban tresillo pattern.
+ * note("c3").euclid(3,8)
+ * @example // Another Ruchenitza Bulgarian folk-dance rhythm.
+ * note("c3").euclid(4,7)
+ * @example // The Aksak rhythm of Turkey.
+ * note("c3").euclid(4,9)
+ * @example // The metric pattern used by Frank Zappa in his piece titled Outside Now.
+ * note("c3").euclid(4,11)
+ * @example // Yields the York-Samai pattern, a popular Arab rhythm.
+ * note("c3").euclid(5,6)
+ * @example // The Nawakhat pattern, another popular Arab rhythm.
+ * note("c3").euclid(5,7)
+ * @example // The Cuban cinquillo pattern.
+ * note("c3").euclid(5,8)
+ * @example // A popular Arab rhythm called Agsag-Samai.
+ * note("c3").euclid(5,9)
+ * @example // The metric pattern used by Moussorgsky in Pictures at an Exhibition.
+ * note("c3").euclid(5,11)
+ * @example // The Venda clapping pattern of a South African children’s song.
+ * note("c3").euclid(5,12)
+ * @example // The Bossa-Nova rhythm necklace of Brazil.
+ * note("c3").euclid(5,16)
+ * @example // A typical rhythm played on the Bendir (frame drum).
+ * note("c3").euclid(7,8)
+ * @example // A common West African bell pattern.
+ * note("c3").euclid(7,12)
+ * @example // A Samba rhythm necklace from Brazil.
+ * note("c3").euclidRot(7,16,14)
+ * @example // A rhythm necklace used in the Central African Republic.
+ * note("c3").euclid(9,16)
+ * @example // A rhythm necklace of the Aka Pygmies of Central Africa.
+ * note("c3").euclidRot(11,24,14)
+ * @example // Another rhythm necklace of the Aka Pygmies of the upper Sangha.
+ * note("c3").euclidRot(13,24,5)
+ */
+
+const _euclidRot = function (pulses, steps, rotation) {
+  const b = bjork(pulses, steps);
   if (rotation) {
     return rotate(b, -rotation);
   }
   return b;
 };
 
-/**
- * Changes the structure of the pattern to form an euclidean rhythm.
- * Euclidian rhythms are rhythms obtained using the greatest common divisor of two numbers.
- * They were described in 2004 by Godfried Toussaint, a canadian computer scientist.
- * Euclidian rhythms are really useful for computer/algorithmic music because they can accurately
- * describe a large number of rhythms used in the most important music world traditions.
- *
- * @memberof Pattern
- * @param {number} pulses the number of onsets / beats
- * @param {number} steps the number of steps to fill
- * @param {number} rotation (optional) offset in steps
- * @returns Pattern
- * @example // The Cuban tresillo pattern.
- * "c3".euclid(3,8)
- * @example // A thirteenth century Persian rhythm called Khafif-e-ramal.
- * "c3".euclid(2,5)
- * @example // The archetypal pattern of the Cumbia from Colombia, as well as a Calypso rhythm from Trinidad.
- * "c3".euclid(3,4)
- * @example // Another thirteenth century Persian rhythm by the name of Khafif-e-ramal, as well as a Rumanian folk-dance rhythm.
- * "c3".euclid(3,5,2)
- * @example // A Ruchenitza rhythm used in a Bulgarian folk-dance.
- * "c3".euclid(3,7)
- * @example // The Cuban tresillo pattern.
- * "c3".euclid(3,8)
- * @example // Another Ruchenitza Bulgarian folk-dance rhythm.
- * "c3".euclid(4,7)
- * @example // The Aksak rhythm of Turkey.
- * "c3".euclid(4,9)
- * @example // The metric pattern used by Frank Zappa in his piece titled Outside Now.
- * "c3".euclid(4,11)
- * @example // Yields the York-Samai pattern, a popular Arab rhythm.
- * "c3".euclid(5,6)
- * @example // The Nawakhat pattern, another popular Arab rhythm.
- * "c3".euclid(5,7)
- * @example // The Cuban cinquillo pattern.
- * "c3".euclid(5,8)
- * @example // A popular Arab rhythm called Agsag-Samai.
- * "c3".euclid(5,9)
- * @example // The metric pattern used by Moussorgsky in Pictures at an Exhibition.
- * "c3".euclid(5,11)
- * @example // The Venda clapping pattern of a South African children’s song.
- * "c3".euclid(5,12)
- * @example // The Bossa-Nova rhythm necklace of Brazil.
- * "c3".euclid(5,16)
- * @example // A typical rhythm played on the Bendir (frame drum).
- * "c3".euclid(7,8)
- * @example // A common West African bell pattern.
- * "c3".euclid(7,12)
- * @example // A Samba rhythm necklace from Brazil.
- * "c3".euclid(7,16,14)
- * @example // A rhythm necklace used in the Central African Republic.
- * "c3".euclid(9,16)
- * @example // A rhythm necklace of the Aka Pygmies of Central Africa.
- * "c3".euclid(11,24,14)
- * @example // Another rhythm necklace of the Aka Pygmies of the upper Sangha.
- * "c3".euclid(13,24,5)
- */
-Pattern.prototype.euclid = function (pulses, steps, rotation = 0) {
-  return this.struct(euclid(pulses, steps, rotation));
-};
+export const euclid = register('euclid', function (pulses, steps, pat) {
+  return pat.struct(_euclidRot(pulses, steps, 0));
+});
+
+export const { euclidrot, euclidRot } = register(['euclidrot', 'euclidRot'], function (pulses, steps, rotation, pat) {
+  return pat.struct(_euclidRot(pulses, steps, rotation));
+});
 
 /**
- * Similar to {@link Pattern#euclid}, but each pulse is held until the next pulse, so there will be no gaps.
+ * Similar to `euclid`, but each pulse is held until the next pulse,
+ * so there will be no gaps.
+ * @name euclidLegato
+ * @memberof Pattern
+ * @example
+ * n("g2").decay(.1).sustain(.3).euclidLegato(3,8)
  */
-Pattern.prototype.euclidLegato = function (pulses, steps, rotation = 0) {
-  const bin_pat = euclid(pulses, steps, rotation);
-  const firstOne = bin_pat.indexOf(1);
-  const gapless = rotate(bin_pat, firstOne)
+
+const _euclidLegato = function (pulses, steps, rotation, pat) {
+  if (pulses < 1) {
+    return silence;
+  }
+  const bin_pat = _euclidRot(pulses, steps, rotation);
+  const gapless = bin_pat
     .join('')
     .split('1')
     .slice(1)
     .map((s) => [s.length + 1, true]);
-  return this.struct(timeCat(...gapless)).late(Fraction(firstOne).div(steps));
+  return pat.struct(timeCat(...gapless));
 };
 
-export default euclid;
+export const euclidLegato = register(['euclidLegato'], function (pulses, steps, pat) {
+  return _euclidLegato(pulses, steps, 0, pat);
+});
+
+export const euclidLegatoRot = register(['euclidLegatoRot'], function (pulses, steps, rotation, pat) {
+  return _euclidLegato(pulses, steps, rotation, pat);
+});

packages/core/evaluate.mjs

@@ -0,0 +1,60 @@
+/*
+evaluate.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/eval/evaluate.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { isPattern } from './index.mjs';
+
+let scoped = false;
+export const evalScope = async (...args) => {
+  if (scoped) {
+    console.warn('evalScope was called more than once.');
+  }
+  scoped = true;
+  const results = await Promise.allSettled(args);
+  const modules = results.filter((result) => result.status === 'fulfilled').map((r) => r.value);
+  results.forEach((result, i) => {
+    if (result.status === 'rejected') {
+      console.warn(`evalScope: module with index ${i} could not be loaded:`, result.reason);
+    }
+  });
+  // Object.assign(globalThis, ...modules);
+  // below is a fix for above commented out line
+  // same error as https://github.com/vitest-dev/vitest/issues/1807 when running this on astro server
+  modules.forEach((module) => {
+    Object.entries(module).forEach(([name, value]) => {
+      globalThis[name] = value;
+    });
+  });
+};
+
+function safeEval(str, options = {}) {
+  const { wrapExpression = true, wrapAsync = true } = options;
+  if (wrapExpression) {
+    str = `{${str}}`;
+  }
+  if (wrapAsync) {
+    str = `(async ()=>${str})()`;
+  }
+  const body = `"use strict";return (${str})`;
+  return Function(body)();
+}
+
+export const evaluate = async (code, transpiler) => {
+  if (!scoped) {
+    await evalScope(); // at least scope Pattern.prototype.boostrap
+  }
+  if (transpiler) {
+    code = transpiler(code); // transform syntactically correct js code to semantically usable code
+  }
+  // if no transpiler is given, we expect a single instruction (!wrapExpression)
+  const options = { wrapExpression: !!transpiler };
+  let evaluated = await safeEval(code, options);
+  if (!isPattern(evaluated)) {
+    console.log('evaluated', evaluated);
+    const message = `got "${typeof evaluated}" instead of pattern`;
+    throw new Error(message + (typeof evaluated === 'function' ? ', did you forget to call a function?' : '.'));
+  }
+  return { mode: 'javascript', pattern: evaluated };
+};

packages/core/examples/repl.html

@@ -0,0 +1,90 @@
+<div style="position: absolute; bottom: 0; right: 0; padding: 4px; width: 100vw; display: flex">
+  <button id="start" style="font-size: 2em">start</button>
+  <button id="stop" style="font-size: 2em">stop</button>
+  <button id="slower" style="font-size: 2em">slower</button>
+  <button id="faster" style="font-size: 2em">faster</button>
+</div>
+<textarea
+  style="font-size: 2em; background: #052b49; color: #fff; height: 100%; width: 100%; outline: none; border: 0"
+  id="text"
+  spellcheck="false"
+>
+Loading...</textarea
+>
+<script type="module">
+  document.body.style = 'margin: 0';
+  import * as strudel from '@strudel.cycles/core';
+
+  const { cat, State, TimeSpan, Scheduler, getPlayableNoteValue, getFreq } = strudel;
+  Object.assign(window, strudel); // add strudel to eval scope
+
+  const ctx = new AudioContext();
+  const scheduler = new Scheduler({
+    // audioContext: getAudioContext(),
+    interval: 0.1,
+    onTrigger: (hap, time, duration) => {
+      const freq = getFrequency(hap);
+      const osc = ctx.createOscillator();
+      const gain = 0.2;
+      osc.frequency.value = freq;
+      osc.type = 'triangle';
+      const onset = ctx.currentTime + time;
+      const offset = onset + duration;
+      const attack = 0.05;
+      const release = 0.05;
+      osc.start(onset);
+      osc.stop(offset + release);
+
+      const g = ctx.createGain();
+      g.gain.setValueAtTime(gain, onset);
+      g.gain.linearRampToValueAtTime(gain, onset + attack);
+      g.gain.setValueAtTime(gain, offset - release);
+      g.gain.linearRampToValueAtTime(0, offset);
+      osc.connect(g);
+      g.connect(ctx.destination);
+    },
+  });
+
+  let initialCode = `stack('c4','e4',cat('g4','a4','b4','a4'))
+.add(cat(0,1,2,3,4,3,2,1).slow(8))
+.fast(2)
+.cps(tri.range(1,8).slow(32))`;
+
+  try {
+    const base64 = decodeURIComponent(window.location.href.split('#')[1]);
+    initialCode = atob(base64);
+  } catch (err) {
+    console.warn('failed to decode', err);
+  }
+  const input = document.getElementById('text');
+  input.value = initialCode;
+  const evaluate = () => {
+    try {
+      const pattern = eval(input.value);
+      scheduler.setPattern(pattern);
+      window.location.hash = '#' + encodeURIComponent(btoa(input.value)); // update url hash
+    } catch (err) {
+      console.warn(err);
+    }
+  };
+  evaluate();
+  input.addEventListener('input', () => evaluate());
+  document.getElementById('start').addEventListener('click', async () => {
+    await ctx.resume();
+    scheduler.start();
+  });
+  document.getElementById('stop').addEventListener('click', () => scheduler.stop());
+  document.getElementById('slower').addEventListener('click', () => scheduler.setCps(scheduler.cps - 0.1));
+  document.getElementById('faster').addEventListener('click', () => scheduler.setCps(scheduler.cps + 0.1));
+</script>
+<!--
+  sequence(1,2).mul(55/2) // frequencies
+  .mul(slowcat(1,2))
+  .mul(slowcat(1,3/2,4/3,5/3).slow(8))
+  .fast(3)
+  .freq()
+  .velocity(.5)
+  .s('sawtooth')
+  .cutoff(800)
+  .out()
+-->

packages/core/examples/scheduled.html

@@ -0,0 +1,44 @@
+<input
+  type="text"
+  id="text"
+  value="seq('c3','eb3','g3').note().s('sawtooth').out()"
+  style="width: 100%; font-size: 2em; outline: none; margin-bottom: 10px"
+  spellcheck="false"
+/>
+<button id="start">play</button>
+<div id="output"></div>
+<script type="module">
+  const strudel = await import('https://cdn.skypack.dev/@strudel.cycles/core@latest');
+
+  const controls = await import('https://cdn.skypack.dev/@strudel.cycles/core@latest/controls.mjs');
+  const { getAudioContext, Scheduler } = await import('https://cdn.skypack.dev/@strudel.cycles/webaudio@latest');
+  let scheduler;
+
+  const audioContext = getAudioContext();
+  const latency = 0.2;
+
+  Object.assign(window, strudel);
+  Object.assign(window, controls.default);
+  scheduler = new Scheduler({
+    audioContext,
+    interval: 0.1,
+    latency,
+    onEvent: (hap) => {
+      if (!hap.context.onTrigger) {
+        console.warn('no output chosen. use one of .out() .webdirt() .osc()');
+      }
+    },
+  });
+  let started;
+  document.getElementById('start').addEventListener('click', async () => {
+    const code = document.getElementById('text').value;
+    const pattern = eval(code);
+    const events = pattern._firstCycleValues;
+    console.log(code, '->', events);
+    scheduler.setPattern(pattern);
+    if (!started) {
+      scheduler.start();
+      started = true;
+    }
+  });
+</script>

packages/core/examples/vanilla.html

@@ -0,0 +1,96 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Buildless Vanilla Strudel REPL</title>
+  </head>
+  <body style="margin: 0; background: #222">
+    <div style="display: grid; height: 100vh">
+      <textarea
+        id="text"
+        style="font-size: 2em; border: 0; color: white; background: transparent; outline: none; padding: 20px"
+        spellcheck="false"
+      ></textarea>
+    </div>
+    <button
+      id="start"
+      style="
+        position: absolute;
+        border-radius: 10px;
+        top: 20px;
+        right: 20px;
+        padding: 20px;
+        border: 2px solid white;
+        background: transparent;
+        color: white;
+        cursor: pointer;
+      "
+    >
+      evaluate
+    </button>
+    <div id="output"></div>
+    <script type="module">
+      import { controls, repl, evalScope } from 'https://cdn.skypack.dev/@strudel.cycles/core@0.3.2';
+      import { mini } from 'https://cdn.skypack.dev/@strudel.cycles/mini@0.3.2';
+      import { transpiler } from 'https://cdn.skypack.dev/@strudel.cycles/transpiler@0.3.2';
+      import { getAudioContext, webaudioOutput } from 'https://cdn.skypack.dev/@strudel.cycles/webaudio@0.3.3';
+
+      const ctx = getAudioContext();
+      const input = document.getElementById('text');
+      input.innerHTML = getTune();
+
+      evalScope(
+        controls,
+        import('https://cdn.skypack.dev/@strudel.cycles/core@0.3.2'),
+        import('https://cdn.skypack.dev/@strudel.cycles/mini@0.3.2'),
+        import('https://cdn.skypack.dev/@strudel.cycles/tonal@0.3.3'),
+        import('https://cdn.skypack.dev/@strudel.cycles/webaudio@0.3.3'),
+      );
+
+      const { evaluate } = repl({
+        defaultOutput: webaudioOutput,
+        getTime: () => ctx.currentTime,
+        transpiler,
+      });
+      document.getElementById('start').addEventListener('click', () => {
+        ctx.resume();
+        evaluate(input.value);
+      });
+
+      function getTune() {
+        return `await samples('github:tidalcycles/Dirt-Samples/master')
+
+stack(
+  // amen
+  n("0 1 2 3 4 5 6 7")
+  .sometimes(x=>x.ply(2))
+  .rarely(x=>x.speed("2 | -2"))
+  .sometimesBy(.4, x=>x.delay(".5"))
+  .s("amencutup")
+  .slow(2)
+  .room(.5)
+  ,
+  // bass
+  sine.add(saw.slow(4)).range(0,7).segment(8)
+  .superimpose(x=>x.add(.1))
+  .scale('G0 minor').note()
+  .s("sawtooth").decay(.1).sustain(0)
+  .gain(.4).cutoff(perlin.range(300,3000).slow(8)).resonance(10)
+  .degradeBy("0 0.1 .5 .1")
+  .rarely(add(note("12")))
+  ,
+  // chord
+  note("Bb3,D4".superimpose(x=>x.add(.2)))
+  .s('sawtooth').cutoff(1000).struct("<~@3 [~ x]>")
+  .decay(.05).sustain(.0).delay(.8).delaytime(.125).room(.8)
+  ,
+  // alien
+  s("breath").room(1).shape(.6).chop(16).rev().mask("<x ~@7>")
+  ,
+  n("0 1").s("east").delay(.5).degradeBy(.8).speed(rand.range(.5,1.5))
+).reset("<x@7 x(5,8)>")`;
+      }
+    </script>
+  </body>
+</html>

packages/core/examples/vite-vanilla-repl/.gitignore

@@ -0,0 +1 @@
+!dist

packages/core/examples/vite-vanilla-repl/README.md

@@ -0,0 +1,10 @@
+# vite-vanilla-repl
+
+This folder demonstrates how to set up a strudel repl using vite and vanilla JS. Run it using:
+
+```sh
+npm i
+npm run dev
+```
+
+or view it [live on githack](https://rawcdn.githack.com/tidalcycles/strudel/5fb36acb046ead7cd6ad3cd10f532e7f585f536a/packages/core/examples/vite-vanilla-repl/dist/index.html)

packages/core/examples/vite-vanilla-repl/dist/assets/index.211bbc68.js

@@ -0,0 +1 @@
+import{b as s,h as i,m,a as n,c as p,p as t}from"./index.4cbc0a10.js";export{s as SyntaxError,i as h,m as mini,n as minify,p as parse,t as patternifyAST};

packages/core/examples/vite-vanilla-repl/dist/assets/index.ecddf978.js

@@ -0,0 +1 @@
+import{g as s,f as d,i as t,n as r,l as u,j as o,d as f,k as p,r as g,s as i,w as l,e as m}from"./index.4cbc0a10.js";export{s as getAudioContext,d as getCachedBuffer,t as getLoadedBuffer,r as getLoadedSamples,u as loadBuffer,o as loadGithubSamples,f as panic,p as resetLoadedSamples,g as reverseBuffer,i as samples,l as webaudioOutput,m as webaudioOutputTrigger};

packages/core/examples/vite-vanilla-repl/dist/index.html

@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Vite Vanilla Strudel REPL</title>
+    <script type="module" crossorigin src="/tidalcycles/strudel/use-acorn/packages/core/examples/vite-vanilla-repl/dist/assets/index.4cbc0a10.js"></script>
+  </head>
+  <body style="margin: 0; background: #222">
+    <div style="display: grid; height: 100vh">
+      <textarea
+        id="text"
+        style="font-size: 2em; border: 0; color: white; background: transparent; outline: none; padding: 20px"
+        spellcheck="false"
+      ></textarea>
+    </div>
+    <button
+      id="start"
+      style="
+        position: absolute;
+        border-radius: 10px;
+        top: 20px;
+        right: 20px;
+        padding: 20px;
+        border: 2px solid white;
+        background: transparent;
+        color: white;
+        cursor: pointer;
+      "
+    >
+      evaluate
+    </button>
+    <div id="output"></div>
+    
+  </body>
+</html>

packages/core/examples/vite-vanilla-repl/index.html

@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Vite Vanilla Strudel REPL</title>
+  </head>
+  <body style="margin: 0; background: #222">
+    <div style="display: grid; height: 100vh">
+      <textarea
+        id="text"
+        style="font-size: 2em; border: 0; color: white; background: transparent; outline: none; padding: 20px"
+        spellcheck="false"
+      ></textarea>
+    </div>
+    <button
+      id="start"
+      style="
+        position: absolute;
+        border-radius: 10px;
+        top: 20px;
+        right: 20px;
+        padding: 20px;
+        border: 2px solid white;
+        background: transparent;
+        color: white;
+        cursor: pointer;
+      "
+    >
+      evaluate
+    </button>
+    <div id="output"></div>
+    <script type="module" src="./main.js"></script>
+  </body>
+</html>

packages/core/examples/vite-vanilla-repl/main.js

@@ -0,0 +1,29 @@
+import { controls, repl, evalScope, setStringParser } from '@strudel.cycles/core';
+import { mini } from '@strudel.cycles/mini';
+import { getAudioContext, webaudioOutput } from '@strudel.cycles/webaudio';
+// import { transpiler } from '@strudel.cycles/transpiler';
+import tune from './tune.mjs';
+
+const ctx = getAudioContext();
+const input = document.getElementById('text');
+input.innerHTML = tune;
+
+evalScope(
+  controls,
+  import('@strudel.cycles/core'),
+  import('@strudel.cycles/mini'),
+  import('@strudel.cycles/webaudio'),
+  import('@strudel.cycles/tonal'),
+);
+
+setStringParser(mini);
+
+const { evaluate } = repl({
+  defaultOutput: webaudioOutput,
+  getTime: () => ctx.currentTime,
+  // transpiler,
+});
+document.getElementById('start').addEventListener('click', () => {
+  ctx.resume();
+  evaluate(input.value);
+});

packages/core/examples/vite-vanilla-repl/package-lock.json

@@ -0,0 +1,885 @@
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+      }
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+      "dev": true
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+    "vite": {
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+      "resolved": "https://registry.npmjs.org/vite/-/vite-3.2.2.tgz",
+      "integrity": "sha512-pLrhatFFOWO9kS19bQ658CnRYzv0WLbsPih6R+iFeEEhDOuYgYCX2rztUViMz/uy/V8cLCJvLFeiOK7RJEzHcw==",
+      "dev": true,
+      "requires": {
+        "esbuild": "^0.15.9",
+        "fsevents": "~2.3.2",
+        "postcss": "^8.4.18",
+        "resolve": "^1.22.1",
+        "rollup": "^2.79.1"
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+}

packages/core/examples/vite-vanilla-repl/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "vite-vanilla-repl",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build-githack": "vite build --base /tidalcycles/strudel/use-acorn/packages/core/examples/vite-vanilla-repl/dist/",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "devDependencies": {
+    "vite": "^3.2.0"
+  }
+}

packages/core/examples/vite-vanilla-repl/tune.mjs

@@ -0,0 +1,39 @@
+/* export default `await samples('github:tidalcycles/Dirt-Samples/master')
+
+stack(
+  // amen
+  n("0 1 2 3 4 5 6 7")
+  .sometimes(x=>x.ply(2))
+  .rarely(x=>x.speed("2 | -2"))
+  .sometimesBy(.4, x=>x.delay(".5"))
+  .s("amencutup")
+  .slow(2)
+  .room(.5)
+  ,
+  // bass
+  sine.add(saw.slow(4)).range(0,7).segment(8)
+  .superimpose(x=>x.add(.1))
+  .scale('G0 minor').note()
+  .s("sawtooth").decay(.1).sustain(0)
+  .gain(.4).cutoff(perlin.range(300,3000).slow(8)).resonance(10)
+  .degradeBy("0 0.1 .5 .1")
+  .rarely(add(note("12")))
+  ,
+  // chord
+  note("Bb3,D4".superimpose(x=>x.add(.2)))
+  .s('sawtooth').cutoff(1000).struct("<~@3 [~ x]>")
+  .decay(.05).sustain(.0).delay(.8).delaytime(.125).room(.8)
+  ,
+  // alien
+  s("breath").room(1).shape(.6).chop(16).rev().mask("<x ~@7>")
+  ,
+  n("0 1").s("east").delay(.5).degradeBy(.8).speed(rand.range(.5,1.5))
+).reset("<x@7 x(5,8)>")`;
+ */
+
+export default `stack(
+  n("c3 [eb3,g3]")
+  .delay("<0 .5>")
+  .delaytime(".16 | .33")
+  .delayfeedback(".6 | .8")
+).sometimes(x=>x.speed("-1"))`;

packages/core/examples/without-audio.html

@@ -0,0 +1,65 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Buildless Vanilla Strudel REPL</title>
+  </head>
+  <body style="margin: 0; background: #222">
+    <div style="display: grid; height: 100vh">
+      <textarea
+        id="text"
+        style="font-size: 2em; border: 0; color: white; background: transparent; outline: none; padding: 20px"
+        spellcheck="false"
+      >
+// LOADING</textarea
+      >
+    </div>
+    <button
+      id="start"
+      style="
+        position: absolute;
+        border-radius: 10px;
+        top: 20px;
+        right: 20px;
+        padding: 20px;
+        border: 2px solid white;
+        background: transparent;
+        color: white;
+        cursor: pointer;
+      "
+    >
+      evaluate
+    </button>
+    <div id="output"></div>
+    <script type="module">
+      import { controls, repl, evalScope } from 'https://cdn.skypack.dev/@strudel.cycles/core@0.4.1';
+      import { transpiler } from 'https://cdn.skypack.dev/@strudel.cycles/transpiler@0.4.1';
+
+      const modules = [
+        import('https://cdn.skypack.dev/@strudel.cycles/core@0.4.1'),
+        import('https://cdn.skypack.dev/@strudel.cycles/mini@0.4.1'),
+      ];
+
+      const input = document.getElementById('text');
+
+      Promise.all(modules).then(() => {
+        input.innerHTML = `note("<c3 [d3 e3]>").cutoff(1000)`;
+        document.getElementById('start').addEventListener('click', () => {
+          evaluate(input.value);
+        });
+      });
+      evalScope(controls, ...modules);
+
+      const { evaluate } = repl({
+        defaultOutput: (hap, deadline, duration) => {
+          console.log(deadline, duration, hap.value);
+        },
+        getTime: () => Date.now() / 1000,
+        transpiler,
+        beforeEval: (code) => console.log('evaluate', code),
+        afterEval: (code) => {},
+      });
+    </script>
+  </body>
+</html>

packages/core/fraction.mjs

@@ -55,7 +55,8 @@ Fraction.prototype.min = function (other) {
   return this.lt(other) ? this : other;
 };
 
-Fraction.prototype.show = function () {
+Fraction.prototype.show = function (/* excludeWhole = false */) {
+  // return this.toFraction(excludeWhole);
   return this.s * this.n + '/' + this.d;
 };
 
@@ -73,7 +74,7 @@ const fraction = (n) => {
     -> those farey sequences turn out to make pattern querying ~20 times slower! always use strings!
     -> still, some optimizations could be done: .mul .div .add .sub calls still use numbers
     */
-    n = String(n);
+    // n = String(n); // this is actually faster but imprecise...
   }
   return Fraction(n);
 };

packages/core/hap.mjs

@@ -79,15 +79,42 @@ export class Hap {
     );
   }
 
-  show() {
-    return (
-      '(' + (this.whole == undefined ? '~' : this.whole.show()) + ', ' + this.part.show() + ', ' + this.value + ')'
-    );
+  show(compact = false) {
+    const value =
+      typeof this.value === 'object'
+        ? compact
+          ? JSON.stringify(this.value).slice(1, -1).replaceAll('"', '').replaceAll(',', ' ')
+          : JSON.stringify(this.value)
+        : this.value;
+    var spans = '';
+    if (this.whole == undefined) {
+      spans = '~' + this.part.show;
+    } else {
+      var is_whole = this.whole.begin.equals(this.part.begin) && this.whole.end.equals(this.part.end);
+      if (!this.whole.begin.equals(this.part.begin)) {
+        spans = this.whole.begin.show() + ' ⇜ ';
+      }
+      if (!is_whole) {
+        spans += '(';
+      }
+      spans += this.part.show();
+      if (!is_whole) {
+        spans += ')';
+      }
+      if (!this.whole.end.equals(this.part.end)) {
+        spans += ' ⇝ ' + this.whole.end.show();
+      }
+    }
+    return '[ ' + spans + ' | ' + value + ' ]';
   }
 
-  showWhole() {
+  showWhole(compact = false) {
     return `${this.whole == undefined ? '~' : this.whole.show()}: ${
-      typeof this.value === 'object' ? JSON.stringify(this.value) : this.value
+      typeof this.value === 'object'
+        ? compact
+          ? JSON.stringify(this.value).slice(1, -1).replaceAll('"', '').replaceAll(',', ' ')
+          : JSON.stringify(this.value)
+        : this.value
     }`;
   }
 

packages/core/index.mjs

@@ -4,10 +4,11 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-export * from './controls.mjs';
+import controls from './controls.mjs';
 export * from './euclid.mjs';
 import Fraction from './fraction.mjs';
-export { Fraction };
+import { logger } from './logger.mjs';
+export { Fraction, controls };
 export * from './hap.mjs';
 export * from './pattern.mjs';
 export * from './signal.mjs';
@@ -15,14 +16,20 @@ export * from './state.mjs';
 export * from './timespan.mjs';
 export * from './util.mjs';
 export * from './speak.mjs';
+export * from './evaluate.mjs';
+export * from './repl.mjs';
+export * from './logger.mjs';
+export * from './time.mjs';
+export * from './draw.mjs';
+export * from './animate.mjs';
+export * from './pianoroll.mjs';
+export * from './ui.mjs';
+export { default as drawLine } from './drawLine.mjs';
 export { default as gist } from './gist.js';
 // below won't work with runtime.mjs (json import fails)
 /* import * as p from './package.json';
 export const version = p.version; */
-console.log(
-  '%c // 🌀 @strudel.cycles/core loaded 🌀', // keep "//" for runnable snapshot source..
-  'background-color: black;color:white;padding:4px;border-radius:15px',
-);
+logger('🌀 @strudel.cycles/core loaded 🌀');
 if (globalThis._strudelLoaded) {
   console.warn(
     `@strudel.cycles/core was loaded more than once...

packages/core/logger.mjs

@@ -0,0 +1,18 @@
+export const logKey = 'strudel.log';
+
+export function logger(message, type, data = {}) {
+  console.log(`%c${message}`, 'background-color: black;color:white;border-radius:15px');
+  if (typeof document !== 'undefined' && typeof CustomEvent !== 'undefined') {
+    document.dispatchEvent(
+      new CustomEvent(logKey, {
+        detail: {
+          message,
+          type,
+          data,
+        },
+      }),
+    );
+  }
+}
+
+logger.key = logKey;

packages/core/package-lock.json

@@ -1,6 +1,6 @@
 {
 	"name": "@strudel.cycles/core",
-	"version": "0.1.2",
+	"version": "0.5.0",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {

packages/core/package.json

@@ -1,11 +1,11 @@
 {
   "name": "@strudel.cycles/core",
-  "version": "0.1.2",
+  "version": "0.5.0",
   "description": "Port of Tidal Cycles to JavaScript",
   "main": "index.mjs",
   "type": "module",
   "scripts": {
-    "test": "mocha --colors"
+    "test": "vitest run"
   },
   "repository": {
     "type": "git",
@@ -25,11 +25,7 @@
   },
   "homepage": "https://strudel.tidalcycles.org",
   "dependencies": {
-    "bjork": "^0.0.1",
     "fraction.js": "^4.2.0"
   },
-  "devDependencies": {
-    "mocha": "^9.2.2"
-  },
   "gitHead": "0e26d4e741500f5bae35b023608f062a794905c2"
 }

packages/core/pianoroll.mjs

@@ -0,0 +1,297 @@
+/*
+pianoroll.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/tone/pianoroll.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { Pattern, toMidi, getDrawContext, freqToMidi, isNote } from './index.mjs';
+
+const scale = (normalized, min, max) => normalized * (max - min) + min;
+const getValue = (e) => {
+  let { value } = e;
+  if (typeof e.value !== 'object') {
+    value = { value };
+  }
+  let { note, n, freq, s } = value;
+  if (freq) {
+    return freqToMidi(freq);
+  }
+  note = note ?? n;
+  if (typeof note === 'string') {
+    return toMidi(note);
+  }
+  if (typeof note === 'number') {
+    return note;
+  }
+  if (s) {
+    return '_' + s;
+  }
+  return value;
+};
+
+Pattern.prototype.pianoroll = function ({
+  cycles = 4,
+  playhead = 0.5,
+  overscan = 1,
+  flipTime = 0,
+  flipValues = 0,
+  hideNegative = false,
+  // inactive = '#C9E597',
+  // inactive = '#FFCA28',
+  inactive = '#7491D2',
+  active = '#FFCA28',
+  // background = '#2A3236',
+  background = 'transparent',
+  smear = 0,
+  playheadColor = 'white',
+  minMidi = 10,
+  maxMidi = 90,
+  autorange = 0,
+  timeframe: timeframeProp,
+  fold = 0,
+  vertical = 0,
+} = {}) {
+  const ctx = getDrawContext();
+  const w = ctx.canvas.width;
+  const h = ctx.canvas.height;
+  let from = -cycles * playhead;
+  let to = cycles * (1 - playhead);
+
+  if (timeframeProp) {
+    console.warn('timeframe is deprecated! use from/to instead');
+    from = 0;
+    to = timeframeProp;
+  }
+  const timeAxis = vertical ? h : w;
+  const valueAxis = vertical ? w : h;
+  let timeRange = vertical ? [timeAxis, 0] : [0, timeAxis]; // pixel range for time
+  const timeExtent = to - from; // number of seconds that fit inside the canvas frame
+  const valueRange = vertical ? [0, valueAxis] : [valueAxis, 0]; // pixel range for values
+  let valueExtent = maxMidi - minMidi + 1; // number of "slots" for values, overwritten if autorange true
+  let barThickness = valueAxis / valueExtent; // pixels per value, overwritten if autorange true
+  let foldValues = [];
+  flipTime && timeRange.reverse();
+  flipValues && valueRange.reverse();
+
+  this.draw(
+    (ctx, events, t) => {
+      ctx.fillStyle = background;
+      ctx.globalAlpha = 1; // reset!
+      if (!smear) {
+        ctx.clearRect(0, 0, w, h);
+        ctx.fillRect(0, 0, w, h);
+      }
+      const inFrame = (event) =>
+        (!hideNegative || event.whole.begin >= 0) && event.whole.begin <= t + to && event.whole.end >= t + from;
+      events.filter(inFrame).forEach((event) => {
+        const isActive = event.whole.begin <= t && event.whole.end > t;
+        ctx.fillStyle = event.context?.color || inactive;
+        ctx.strokeStyle = event.context?.color || active;
+        ctx.globalAlpha = event.context.velocity ?? 1;
+        const timePx = scale((event.whole.begin - (flipTime ? to : from)) / timeExtent, ...timeRange);
+        let durationPx = scale(event.duration / timeExtent, 0, timeAxis);
+        const value = getValue(event);
+        const valuePx = scale(
+          fold ? foldValues.indexOf(value) / foldValues.length : (Number(value) - minMidi) / valueExtent,
+          ...valueRange,
+        );
+        let margin = 0;
+        const offset = scale(t / timeExtent, ...timeRange);
+        let coords;
+        if (vertical) {
+          coords = [
+            valuePx + 1 - (flipValues ? barThickness : 0), // x
+            timeAxis - offset + timePx + margin + 1 - (flipTime ? 0 : durationPx), // y
+            barThickness - 2, // width
+            durationPx - 2, // height
+          ];
+        } else {
+          coords = [
+            timePx - offset + margin + 1 - (flipTime ? durationPx : 0), // x
+            valuePx + 1 - (flipValues ? 0 : barThickness), // y
+            durationPx - 2, // widith
+            barThickness - 2, // height
+          ];
+        }
+        isActive ? ctx.strokeRect(...coords) : ctx.fillRect(...coords);
+      });
+      ctx.globalAlpha = 1; // reset!
+      const playheadPosition = scale(-from / timeExtent, ...timeRange);
+      // draw playhead
+      ctx.strokeStyle = playheadColor;
+      ctx.beginPath();
+      if (vertical) {
+        ctx.moveTo(0, playheadPosition);
+        ctx.lineTo(valueAxis, playheadPosition);
+      } else {
+        ctx.moveTo(playheadPosition, 0);
+        ctx.lineTo(playheadPosition, valueAxis);
+      }
+      ctx.stroke();
+    },
+    {
+      from: from - overscan,
+      to: to + overscan,
+      onQuery: (events) => {
+        const { min, max, values } = events.reduce(
+          ({ min, max, values }, e) => {
+            const v = getValue(e);
+            return {
+              min: v < min ? v : min,
+              max: v > max ? v : max,
+              values: values.includes(v) ? values : [...values, v],
+            };
+          },
+          { min: Infinity, max: -Infinity, values: [] },
+        );
+        if (autorange) {
+          minMidi = min;
+          maxMidi = max;
+          valueExtent = maxMidi - minMidi + 1;
+        }
+        foldValues = values.sort((a, b) => String(a).localeCompare(String(b)));
+        barThickness = fold ? valueAxis / foldValues.length : valueAxis / valueExtent;
+      },
+    },
+  );
+  return this;
+};
+
+// this function allows drawing a pianoroll without ties to Pattern.prototype
+// it will probably replace the above in the future
+export function pianoroll({
+  time,
+  haps,
+  cycles = 4,
+  playhead = 0.5,
+  flipTime = 0,
+  flipValues = 0,
+  hideNegative = false,
+  // inactive = '#C9E597',
+  // inactive = '#FFCA28',
+  inactive = '#7491D2',
+  active = '#FFCA28',
+  // background = '#2A3236',
+  background = 'transparent',
+  smear = 0,
+  playheadColor = 'white',
+  minMidi = 10,
+  maxMidi = 90,
+  autorange = 0,
+  timeframe: timeframeProp,
+  fold = 0,
+  vertical = 0,
+  ctx,
+} = {}) {
+  const w = ctx.canvas.width;
+  const h = ctx.canvas.height;
+  let from = -cycles * playhead;
+  let to = cycles * (1 - playhead);
+
+  if (timeframeProp) {
+    console.warn('timeframe is deprecated! use from/to instead');
+    from = 0;
+    to = timeframeProp;
+  }
+  const timeAxis = vertical ? h : w;
+  const valueAxis = vertical ? w : h;
+  let timeRange = vertical ? [timeAxis, 0] : [0, timeAxis]; // pixel range for time
+  const timeExtent = to - from; // number of seconds that fit inside the canvas frame
+  const valueRange = vertical ? [0, valueAxis] : [valueAxis, 0]; // pixel range for values
+  let valueExtent = maxMidi - minMidi + 1; // number of "slots" for values, overwritten if autorange true
+  let barThickness = valueAxis / valueExtent; // pixels per value, overwritten if autorange true
+  let foldValues = [];
+  flipTime && timeRange.reverse();
+  flipValues && valueRange.reverse();
+
+  // onQuery
+  const { min, max, values } = haps.reduce(
+    ({ min, max, values }, e) => {
+      const v = getValue(e);
+      return {
+        min: v < min ? v : min,
+        max: v > max ? v : max,
+        values: values.includes(v) ? values : [...values, v],
+      };
+    },
+    { min: Infinity, max: -Infinity, values: [] },
+  );
+  if (autorange) {
+    minMidi = min;
+    maxMidi = max;
+    valueExtent = maxMidi - minMidi + 1;
+  }
+  // foldValues = values.sort((a, b) => a - b);
+  foldValues = values.sort((a, b) => String(a).localeCompare(String(b)));
+  barThickness = fold ? valueAxis / foldValues.length : valueAxis / valueExtent;
+
+  ctx.fillStyle = background;
+  ctx.globalAlpha = 1; // reset!
+  if (!smear) {
+    ctx.clearRect(0, 0, w, h);
+    ctx.fillRect(0, 0, w, h);
+  }
+  /*   const inFrame = (event) =>
+    (!hideNegative || event.whole.begin >= 0) && event.whole.begin <= time + to && event.whole.end >= time + from; */
+  haps
+    // .filter(inFrame)
+    .forEach((event) => {
+      const isActive = event.whole.begin <= time && event.whole.end > time;
+      const color = event.value?.color || event.context?.color;
+      ctx.fillStyle = color || inactive;
+      ctx.strokeStyle = color || active;
+      ctx.globalAlpha = event.context.velocity ?? 1;
+      const timePx = scale((event.whole.begin - (flipTime ? to : from)) / timeExtent, ...timeRange);
+      let durationPx = scale(event.duration / timeExtent, 0, timeAxis);
+      const value = getValue(event);
+      const valuePx = scale(
+        fold ? foldValues.indexOf(value) / foldValues.length : (Number(value) - minMidi) / valueExtent,
+        ...valueRange,
+      );
+      let margin = 0;
+      const offset = scale(time / timeExtent, ...timeRange);
+      let coords;
+      if (vertical) {
+        coords = [
+          valuePx + 1 - (flipValues ? barThickness : 0), // x
+          timeAxis - offset + timePx + margin + 1 - (flipTime ? 0 : durationPx), // y
+          barThickness - 2, // width
+          durationPx - 2, // height
+        ];
+      } else {
+        coords = [
+          timePx - offset + margin + 1 - (flipTime ? durationPx : 0), // x
+          valuePx + 1 - (flipValues ? 0 : barThickness), // y
+          durationPx - 2, // widith
+          barThickness - 2, // height
+        ];
+      }
+      isActive ? ctx.strokeRect(...coords) : ctx.fillRect(...coords);
+    });
+  ctx.globalAlpha = 1; // reset!
+  const playheadPosition = scale(-from / timeExtent, ...timeRange);
+  // draw playhead
+  ctx.strokeStyle = playheadColor;
+  ctx.beginPath();
+  if (vertical) {
+    ctx.moveTo(0, playheadPosition);
+    ctx.lineTo(valueAxis, playheadPosition);
+  } else {
+    ctx.moveTo(playheadPosition, 0);
+    ctx.lineTo(playheadPosition, valueAxis);
+  }
+  ctx.stroke();
+  return this;
+}
+
+function getOptions(drawTime, options = {}) {
+  let [lookbehind, lookahead] = drawTime;
+  lookbehind = Math.abs(lookbehind);
+  const cycles = lookahead + lookbehind;
+  const playhead = lookbehind / cycles;
+  return { fold: 1, ...options, cycles, playhead };
+}
+
+Pattern.prototype.punchcard = function (options) {
+  return this.onPaint((ctx, time, haps, drawTime) => pianoroll({ ctx, time, haps, ...getOptions(drawTime, options) }));
+};

packages/core/repl.mjs

@@ -0,0 +1,62 @@
+import { Cyclist } from './cyclist.mjs';
+import { evaluate as _evaluate } from './evaluate.mjs';
+import { logger } from './logger.mjs';
+import { setTime } from './time.mjs';
+
+export function repl({
+  interval,
+  defaultOutput,
+  onSchedulerError,
+  onEvalError,
+  beforeEval,
+  afterEval,
+  getTime,
+  transpiler,
+  onToggle,
+  editPattern,
+}) {
+  const scheduler = new Cyclist({
+    interval,
+    onTrigger: async (hap, deadline, duration) => {
+      try {
+        if (!hap.context.onTrigger || !hap.context.dominantTrigger) {
+          await defaultOutput(hap, deadline, duration);
+        }
+        if (hap.context.onTrigger) {
+          const cps = 1;
+          // call signature of output / onTrigger is different...
+          await hap.context.onTrigger(getTime() + deadline, hap, getTime(), cps);
+        }
+      } catch (err) {
+        logger(`[cyclist] error: ${err.message}`, 'error');
+      }
+    },
+    onError: onSchedulerError,
+    getTime,
+    onToggle,
+  });
+  setTime(() => scheduler.now()); // TODO: refactor?
+  const evaluate = async (code, autostart = true) => {
+    if (!code) {
+      throw new Error('no code to evaluate');
+    }
+    try {
+      beforeEval?.({ code });
+      let { pattern } = await _evaluate(code, transpiler);
+
+      logger(`[eval] code updated`);
+      pattern = editPattern?.(pattern) || pattern;
+      scheduler.setPattern(pattern, autostart);
+      afterEval?.({ code, pattern });
+      return pattern;
+    } catch (err) {
+      // console.warn(`[repl] eval error: ${err.message}`);
+      logger(`[eval] error: ${err.message}`, 'error');
+      onEvalError?.(err);
+    }
+  };
+  const stop = () => scheduler.stop();
+  const start = () => scheduler.start();
+  const pause = () => scheduler.pause();
+  return { scheduler, evaluate, start, stop, pause };
+}

packages/core/signal.mjs

@@ -5,7 +5,7 @@ This program is free software: you can redistribute it and/or modify it under th
 */
 
 import { Hap } from './hap.mjs';
-import { Pattern, fastcat, reify, silence, stack } from './pattern.mjs';
+import { Pattern, fastcat, reify, silence, stack, register } from './pattern.mjs';
 import Fraction from './fraction.mjs';
 import { id } from './util.mjs';
 
@@ -20,20 +20,20 @@ export const signal = (func) => {
 };
 
 export const isaw = signal((t) => 1 - (t % 1));
-export const isaw2 = isaw._toBipolar();
+export const isaw2 = isaw.toBipolar();
 
 /**
  *  A sawtooth signal between 0 and 1.
  *
  * @return {Pattern}
  * @example
- * "c3 [eb3,g3] g2 [g3,bb3]".legato(saw.slow(4))
+ * "c3 [eb3,g3] g2 [g3,bb3]".legato(saw.slow(4)).note()
  * @example
- * saw.range(0,8).segment(8).scale('C major').slow(4)
+ * saw.range(0,8).segment(8).scale('C major').slow(4).note()
  *
  */
 export const saw = signal((t) => t % 1);
-export const saw2 = saw._toBipolar();
+export const saw2 = saw.toBipolar();
 
 export const sine2 = signal((t) => Math.sin(Math.PI * 2 * t));
 
@@ -42,41 +42,39 @@ export const sine2 = signal((t) => Math.sin(Math.PI * 2 * t));
  *
  * @return {Pattern}
  * @example
- * sine.segment(16).range(0,15).slow(2).scale('C minor')
+ * sine.segment(16).range(0,15).slow(2).scale('C minor').note()
  *
  */
-export const sine = sine2._fromBipolar();
-
+export const sine = sine2.fromBipolar();
 
 /**
  *  A cosine signal between 0 and 1.
  *
  * @return {Pattern}
  * @example
- * stack(sine,cosine).segment(16).range(0,15).slow(2).scale('C minor')
+ * stack(sine,cosine).segment(16).range(0,15).slow(2).scale('C minor').note()
  *
  */
 export const cosine = sine._early(Fraction(1).div(4));
 export const cosine2 = sine2._early(Fraction(1).div(4));
 
-
 /**
  *  A square signal between 0 and 1.
  *
  * @return {Pattern}
  * @example
- * square.segment(2).range(0,7).scale('C minor')
+ * square.segment(2).range(0,7).scale('C minor').note()
  *
  */
 export const square = signal((t) => Math.floor((t * 2) % 2));
-export const square2 = square._toBipolar();
+export const square2 = square.toBipolar();
 
 /**
  *  A triangle signal between 0 and 1.
  *
  * @return {Pattern}
  * @example
- * triangle.segment(2).range(0,7).scale('C minor')
+ * tri.segment(8).range(0,7).scale('C minor').note()
  *
  */
 export const tri = fastcat(isaw, saw);
@@ -112,28 +110,112 @@ const timeToRandsPrime = (seed, n) => {
 
 const timeToRands = (t, n) => timeToRandsPrime(timeToIntSeed(t), n);
 
+/**
+ *
+ */
+
+/**
+ * A continuous pattern of random numbers, between 0 and 1.
+ *
+ * @name rand
+ * @example
+ * // randomly change the cutoff
+ * s("bd sd,hh*4").cutoff(rand.range(500,2000))
+ *
+ */
 export const rand = signal(timeToRand);
+/**
+ * A continuous pattern of random numbers, between -1 and 1
+ */
+export const rand2 = rand.toBipolar();
 
 export const _brandBy = (p) => rand.fmap((x) => x < p);
 export const brandBy = (pPat) => reify(pPat).fmap(_brandBy).innerJoin();
 export const brand = _brandBy(0.5);
 
 export const _irand = (i) => rand.fmap((x) => Math.trunc(x * i));
+
+/**
+ * A continuous pattern of random integers, between 0 and n-1.
+ *
+ * @name irand
+ * @param {number} n max value (exclusive)
+ * @example
+ * // randomly select scale notes from 0 - 7 (= C to C)
+ * irand(8).struct("x(3,8)").scale('C minor').note()
+ *
+ */
 export const irand = (ipat) => reify(ipat).fmap(_irand).innerJoin();
 
-export const chooseWith = (pat, xs) => {
+export const __chooseWith = (pat, xs) => {
   xs = xs.map(reify);
   if (xs.length == 0) {
     return silence;
   }
-  return pat
-    .range(0, xs.length)
-    .fmap((i) => xs[Math.floor(i)])
-    .outerJoin();
+  return pat.range(0, xs.length).fmap((i) => xs[Math.floor(i)]);
+};
+/**
+ * Choose from the list of values (or patterns of values) using the given
+ * pattern of numbers, which should be in the range of 0..1
+ * @param {Pattern} pat
+ * @param {*} xs
+ * @returns {Pattern}
+ */
+export const chooseWith = (pat, xs) => {
+  return __chooseWith(pat, xs).outerJoin();
 };
 
+/**
+ * As with {chooseWith}, but the structure comes from the chosen values, rather
+ * than the pattern you're using to choose with.
+ * @param {Pattern} pat
+ * @param {*} xs
+ * @returns {Pattern}
+ */
+export const chooseInWith = (pat, xs) => {
+  return __chooseWith(pat, xs).innerJoin();
+};
+
+/**
+ * Chooses randomly from the given list of elements.
+ * @param  {...any} xs values / patterns to choose from.
+ * @returns {Pattern} - a continuous pattern.
+ */
 export const choose = (...xs) => chooseWith(rand, xs);
 
+/**
+ * Chooses from the given list of values (or patterns of values), according
+ * to the pattern that the method is called on. The pattern should be in
+ * the range 0 .. 1.
+ * @param  {...any} xs
+ * @returns {Pattern}
+ */
+Pattern.prototype.choose = function (...xs) {
+  return chooseWith(this, xs);
+};
+
+/**
+ * As with choose, but the pattern that this method is called on should be
+ * in the range -1 .. 1
+ * @param  {...any} xs
+ * @returns {Pattern}
+ */
+Pattern.prototype.choose2 = function (...xs) {
+  return chooseWith(this.fromBipolar(), xs);
+};
+
+/**
+ * Picks one of the elements at random each cycle.
+ * @returns {Pattern}
+ * @example
+ * chooseCycles("bd", "hh", "sd").s().fast(4)
+ * @example
+ * "bd | hh | sd".s().fast(4)
+ */
+export const chooseCycles = (...xs) => chooseInWith(rand.segment(1), xs);
+
+export const randcat = chooseCycles;
+
 const _wchooseWith = function (pat, ...pairs) {
   const values = pairs.map((pair) => reify(pair[0]));
   const weights = [];
@@ -156,6 +238,7 @@ export const wchoose = (...pairs) => wchooseWith(rand, ...pairs);
 
 export const wchooseCycles = (...pairs) => _wchooseWith(rand, ...pairs).innerJoin();
 
+// this function expects pat to be a pattern of floats...
 export const perlinWith = (pat) => {
   const pata = pat.fmap(Math.floor);
   const patb = pat.fmap((t) => Math.floor(t) + 1);
@@ -164,101 +247,229 @@ export const perlinWith = (pat) => {
   return pat.sub(pata).fmap(interp).appBoth(pata.fmap(timeToRand)).appBoth(patb.fmap(timeToRand));
 };
 
-export const perlin = perlinWith(time);
+/**
+ * Generates a continuous pattern of [perlin noise](https://en.wikipedia.org/wiki/Perlin_noise), in the range 0..1.
+ *
+ * @name perlin
+ * @example
+ * // randomly change the cutoff
+ * s("bd sd,hh*4").cutoff(perlin.range(500,2000))
+ *
+ */
+export const perlin = perlinWith(time.fmap((v) => Number(v)));
 
-Pattern.prototype._degradeByWith = function (withPat, x) {
-  return this.fmap((a) => (_) => a).appLeft(withPat._filterValues((v) => v > x));
-};
+export const degradeByWith = register('degradeByWith', (withPat, x, pat) =>
+  pat.fmap((a) => (_) => a).appLeft(withPat.filterValues((v) => v > x)),
+);
 
-Pattern.prototype._degradeBy = function (x) {
-  return this._degradeByWith(rand, x);
-};
+/**
+ * Randomly removes events from the pattern by a given amount.
+ * 0 = 0% chance of removal
+ * 1 = 100% chance of removal
+ *
+ * @name degradeBy
+ * @memberof Pattern
+ * @param {number} amount - a number between 0 and 1
+ * @returns Pattern
+ * @example
+ * s("hh*8").degradeBy(0.2)
+ * @example
+ * s("[hh?0.2]*8")
+ */
+export const degradeBy = register('degradeBy', function (x, pat) {
+  return pat._degradeByWith(rand, x);
+});
 
-Pattern.prototype.degrade = function () {
-  return this._degradeBy(0.5);
-};
+/**
+ *
+ * Randomly removes 50% of events from the pattern. Shorthand for `.degradeBy(0.5)`
+ *
+ * @name degrade
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").degrade()
+ * @example
+ * s("[hh?]*8")
+ */
+export const degrade = register('degrade', (pat) => pat._degradeBy(0.5));
 
-Pattern.prototype._undegradeBy = function (x) {
-  return this._degradeByWith(
+/**
+ * Inverse of {@link Pattern#degradeBy}: Randomly removes events from the pattern by a given amount.
+ * 0 = 100% chance of removal
+ * 1 = 0% chance of removal
+ * Events that would be removed by degradeBy are let through by undegradeBy and vice versa (see second example).
+ *
+ * @name undegradeBy
+ * @memberof Pattern
+ * @param {number} amount - a number between 0 and 1
+ * @returns Pattern
+ * @example
+ * s("hh*8").undegradeBy(0.2)
+ */
+export const undegradeBy = register('undegradeBy', function (x, pat) {
+  return pat._degradeByWith(
     rand.fmap((r) => 1 - r),
     x,
   );
-};
+});
 
-Pattern.prototype.undegrade = function () {
-  return this._undegradeBy(0.5);
-};
+export const undegrade = register('undegrade', (pat) => pat._undegradeBy(0.5));
 
-Pattern.prototype._sometimesBy = function (x, func) {
-  return stack(this._degradeBy(x), func(this._undegradeBy(1 - x)));
-};
+/**
+ *
+ * Randomly applies the given function by the given probability.
+ * Similar to {@link Pattern#someCyclesBy}
+ *
+ * @name sometimesBy
+ * @memberof Pattern
+ * @param {number | Pattern} probability - a number between 0 and 1
+ * @param {function} function - the transformation to apply
+ * @returns Pattern
+ * @example
+ * s("hh(3,8)").sometimesBy(.4, x=>x.speed("0.5"))
+ */
 
-Pattern.prototype.sometimesBy = function (patx, func) {
-  const pat = this;
+export const sometimesBy = register('sometimesBy', function (patx, func, pat) {
   return reify(patx)
-    .fmap((x) => pat._sometimesBy(x, func))
+    .fmap((x) => stack(pat._degradeBy(x), func(pat._undegradeBy(1 - x))))
     .innerJoin();
-};
+});
 
-Pattern.prototype._sometimesByPre = function (x, func) {
-  return stack(this._degradeBy(x), func(this).undegradeBy(1 - x));
-};
+/**
+ *
+ * Applies the given function with a 50% chance
+ *
+ * @name sometimes
+ * @memberof Pattern
+ * @param {function} function - the transformation to apply
+ * @returns Pattern
+ * @example
+ * s("hh*4").sometimes(x=>x.speed("0.5"))
+ */
+export const sometimes = register('sometimes', function (func, pat) {
+  return pat._sometimesBy(0.5, func);
+});
 
-Pattern.prototype.sometimesByPre = function (patx, func) {
-  const pat = this;
+/**
+ *
+ * Randomly applies the given function by the given probability on a cycle by cycle basis.
+ * Similar to {@link Pattern#sometimesBy}
+ *
+ * @name someCyclesBy
+ * @memberof Pattern
+ * @param {number | Pattern} probability - a number between 0 and 1
+ * @param {function} function - the transformation to apply
+ * @returns Pattern
+ * @example
+ * s("hh(3,8)").someCyclesBy(.3, x=>x.speed("0.5"))
+ */
+
+export const someCyclesBy = register('someCyclesBy', function (patx, func, pat) {
   return reify(patx)
-    .fmap((x) => pat._sometimesByPre(x, func))
+    .fmap((x) =>
+      stack(
+        pat._degradeByWith(rand._segment(1), x),
+        func(pat._degradeByWith(rand.fmap((r) => 1 - r)._segment(1), 1 - x)),
+      ),
+    )
     .innerJoin();
-};
+});
 
-Pattern.prototype.sometimes = function (func) {
-  return this._sometimesBy(0.5, func);
-};
+/**
+ *
+ * Shorthand for `.someCyclesBy(0.5, fn)`
+ *
+ * @name someCycles
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh(3,8)").someCycles(x=>x.speed("0.5"))
+ */
+export const someCycles = register('someCycles', function (func, pat) {
+  return pat._someCyclesBy(0.5, func);
+});
 
-Pattern.prototype.sometimesPre = function (func) {
-  return this._sometimesByPre(0.5, func);
-};
+/**
+ *
+ * Shorthand for `.sometimesBy(0.75, fn)`
+ *
+ * @name often
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").often(x=>x.speed("0.5"))
+ */
+export const often = register('often', function (func, pat) {
+  return pat.sometimesBy(0.75, func);
+});
 
-Pattern.prototype._someCyclesBy = function (x, func) {
-  return stack(
-    this._degradeByWith(rand._segment(1), x),
-    func(this._degradeByWith(rand.fmap((r) => 1 - r)._segment(1), 1 - x)),
-  );
-};
+/**
+ *
+ * Shorthand for `.sometimesBy(0.25, fn)`
+ *
+ * @name rarely
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").rarely(x=>x.speed("0.5"))
+ */
+export const rarely = register('rarely', function (func, pat) {
+  return pat.sometimesBy(0.25, func);
+});
 
-Pattern.prototype.someCyclesBy = function (patx, func) {
-  const pat = this;
-  return reify(patx)
-    .fmap((x) => pat._someCyclesBy(x, func))
-    .innerJoin();
-};
+/**
+ *
+ * Shorthand for `.sometimesBy(0.1, fn)`
+ *
+ * @name almostNever
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").almostNever(x=>x.speed("0.5"))
+ */
+export const almostNever = register('almostNever', function (func, pat) {
+  return pat.sometimesBy(0.1, func);
+});
 
-Pattern.prototype.someCycles = function (func) {
-  return this._someCyclesBy(0.5, func);
-};
+/**
+ *
+ * Shorthand for `.sometimesBy(0.9, fn)`
+ *
+ * @name almostAlways
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").almostAlways(x=>x.speed("0.5"))
+ */
+export const almostAlways = register('almostAlways', function (func, pat) {
+  return pat.sometimesBy(0.9, func);
+});
 
-Pattern.prototype.often = function (func) {
-  return this.sometimesBy(0.75, func);
-};
+/**
+ *
+ * Shorthand for `.sometimesBy(0, fn)` (never calls fn)
+ *
+ * @name never
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").never(x=>x.speed("0.5"))
+ */
+export const never = register('never', function (_, pat) {
+  return pat;
+});
 
-Pattern.prototype.rarely = function (func) {
-  return this.sometimesBy(0.25, func);
-};
-
-Pattern.prototype.almostNever = function (func) {
-  return this.sometimesBy(0.1, func);
-};
-
-Pattern.prototype.almostAlways = function (func) {
-  return this.sometimesBy(0.9, func);
-};
-
-Pattern.prototype.never = function (func) {
-  return this;
-};
-
-Pattern.prototype.always = function (func) {
-  return func(this);
-};
-
-Pattern.prototype.patternified.push('degradeBy', 'undegradeBy');
+/**
+ *
+ * Shorthand for `.sometimesBy(1, fn)` (always calls fn)
+ *
+ * @name always
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").always(x=>x.speed("0.5"))
+ */
+export const always = register('always', function (func, pat) {
+  return func(pat);
+});

packages/core/speak.mjs

@@ -4,7 +4,7 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { Pattern, patternify2 } from './index.mjs';
+import { register } from './index.mjs';
 
 let synth;
 try {
@@ -16,7 +16,7 @@ try {
 let allVoices = synth?.getVoices();
 // console.log('voices', allVoices);
 
-function speak(words, lang, voice) {
+function triggerSpeech(words, lang, voice) {
   synth.cancel();
   const utterance = new SpeechSynthesisUtterance(words);
   utterance.lang = lang;
@@ -31,15 +31,8 @@ function speak(words, lang, voice) {
   speechSynthesis.speak(utterance);
 }
 
-Pattern.prototype._speak = function (lang, voice) {
-  return this._withHap((hap) => {
-    const onTrigger = (time, hap) => {
-      speak(hap.value, lang, voice);
-    };
-    return hap.setContext({ ...hap.context, onTrigger });
+export const speak = register('speak', function (lang, voice, pat) {
+  return pat.onTrigger((_, hap) => {
+    triggerSpeech(hap.value, lang, voice);
   });
-};
-
-Pattern.prototype.speak = function (lang, voice) {
-  return patternify2(Pattern.prototype._speak)(reify(lang), reify(voice), this);
-};
+});

packages/core/test/drawLine.test.mjs

@@ -5,52 +5,42 @@ This program is free software: you can redistribute it and/or modify it under th
 */
 
 import { fastcat, stack, slowcat, silence, pure } from '../pattern.mjs';
-import { strict as assert } from 'assert';
+import { describe, it, expect } from 'vitest';
 import drawLine from '../drawLine.mjs';
 
 describe('drawLine', () => {
   it('supports equal lengths', () => {
-    assert.equal(drawLine(fastcat(0), 4), '|0|0');
-    assert.equal(drawLine(fastcat(0, 1), 4), '|01|01');
-    assert.equal(drawLine(fastcat(0, 1, 2), 6), '|012|012');
+    expect(drawLine(fastcat(0), 4)).toEqual('|0|0');
+    expect(drawLine(fastcat(0, 1), 4)).toEqual('|01|01');
+    expect(drawLine(fastcat(0, 1, 2), 6)).toEqual('|012|012');
   });
   it('supports unequal lengths', () => {
-    assert.equal(drawLine(fastcat(0, [1, 2]), 10), '|0-12|0-12');
-    assert.equal(drawLine(fastcat(0, [1, 2, 3]), 10), '|0--123|0--123');
-    assert.equal(drawLine(fastcat(0, 1, [2, 3]), 10), '|0-1-23|0-1-23');
+    expect(drawLine(fastcat(0, [1, 2]), 10)).toEqual('|0-12|0-12');
+    expect(drawLine(fastcat(0, [1, 2, 3]), 10)).toEqual('|0--123|0--123');
+    expect(drawLine(fastcat(0, 1, [2, 3]), 10)).toEqual('|0-1-23|0-1-23');
   });
   it('supports unequal silence', () => {
-    assert.equal(drawLine(fastcat(0, silence, [1, 2]), 10), '|0-..12|0-..12');
+    expect(drawLine(fastcat(0, silence, [1, 2]), 10)).toEqual('|0-..12|0-..12');
   });
   it('supports polyrhythms', () => {
-    '0*2 1*3';
-    assert.equal(drawLine(fastcat(pure(0).fast(2), pure(1).fast(3)), 10), '|0--0--1-1-1-');
+    // assert.equal(drawLine(fastcat(pure(0).fast(2), pure(1).fast(3)), 10), '|0--0--1-1-1-');
+    expect(drawLine(fastcat(pure(0).fast(2), pure(1).fast(3)), 10)).toEqual('|0--0--1-1-1-');
   });
   it('supports multiple lines', () => {
-    assert.equal(
-      drawLine(fastcat(0, stack(1, 2)), 10),
-      `|01|01|01|01
-|.2|.2|.2|.2`,
-    );
-    assert.equal(
-      drawLine(fastcat(0, 1, stack(2, 3)), 10),
-      `|012|012|012
-|..3|..3|..3`,
-    );
-    assert.equal(
-      drawLine(fastcat(0, stack(1, 2, 3)), 10),
-      `|01|01|01|01
+    expect(drawLine(fastcat(0, stack(1, 2)), 10)).toEqual(`|01|01|01|01
+|.2|.2|.2|.2`);
+
+    expect(drawLine(fastcat(0, 1, stack(2, 3)), 10)).toEqual(`|012|012|012
+|..3|..3|..3`);
+
+    expect(drawLine(fastcat(0, stack(1, 2, 3)), 10)).toEqual(`|01|01|01|01
 |.2|.2|.2|.2
-|.3|.3|.3|.3`,
-    );
-    assert.equal(
-      drawLine(fastcat(0, 1, stack(2, 3, 4)), 10),
-      `|012|012|012
+|.3|.3|.3|.3`);
+    expect(drawLine(fastcat(0, 1, stack(2, 3, 4)), 10)).toEqual(`|012|012|012
 |..3|..3|..3
-|..4|..4|..4`,
-    );
+|..4|..4|..4`);
   });
   it('supports unequal cycle lengths', () => {
-    assert.equal(drawLine(slowcat(0, [1, 2]), 10), `|0|12|0|12`);
+    expect(drawLine(slowcat(0, [1, 2]), 10)).toEqual(`|0|12|0|12`);
   });
 });

packages/core/test/fraction.test.mjs

@@ -5,11 +5,11 @@ This program is free software: you can redistribute it and/or modify it under th
 */
 
 import Fraction, { gcd } from '../fraction.mjs';
-import { strict as assert } from 'assert';
+import { describe, it, expect } from 'vitest';
 
 describe('gcd', () => {
   it('should work', () => {
     const F = Fraction._original;
-    assert.equal(gcd(F(1 / 6), F(1 / 4)).toFraction(), '1/12');
+    expect(gcd(F(1 / 6), F(1 / 4)).toFraction()).toEqual('1/12');
   });
 });

packages/core/test/util.test.mjs

@@ -1,120 +1,235 @@
 /*
-util.test.mjs - <short description TODO>
+util.test.mjs - Tests for the core 'util' module
 Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/test/util.test.mjs>
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { strict as assert } from 'assert';
 import { pure } from '../pattern.mjs';
-import { isNote, tokenizeNote, toMidi, fromMidi, mod, compose, getFrequency } from '../util.mjs';
+import {
+  isNote,
+  tokenizeNote,
+  toMidi,
+  fromMidi,
+  freqToMidi,
+  _mod,
+  compose,
+  getFrequency,
+  getPlayableNoteValue,
+  parseNumeral,
+  parseFractional,
+  numeralArgs,
+  fractionalArgs,
+} from '../util.mjs';
+import { describe, it, expect } from 'vitest';
 
 describe('isNote', () => {
   it('should recognize notes without accidentals', () => {
     'C3 D3 E3 F3 G3 A3 B3 C4 D5 c5 d5 e5'.split(' ').forEach((note) => {
-      assert.equal(isNote(note), true);
+      expect(isNote(note)).toBe(true);
     });
   });
   it('should recognize notes with accidentals', () => {
     'C#3 D##3 Eb3 Fbb3 Bb5'.split(' ').forEach((note) => {
-      assert.equal(isNote(note), true);
+      expect(isNote(note)).toBe(true);
     });
   });
+  it('should recognize notes without octave', () => {
+    expect(isNote('C')).toBe(true);
+    expect(isNote('Bb')).toBe(true);
+  });
   it('should not recognize invalid notes', () => {
-    assert.equal(isNote('H5'), false);
-    assert.equal(isNote('C'), false);
-    assert.equal(isNote('X'), false);
-    assert.equal(isNote(1), false);
+    expect(isNote('H5')).toBe(false);
+    expect(isNote('X')).toBe(false);
+    expect(isNote(1)).toBe(false);
   });
 });
 
 describe('isNote', () => {
   it('should tokenize notes without accidentals', () => {
-    assert.deepStrictEqual(tokenizeNote('C3'), ['C', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('D3'), ['D', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('E3'), ['E', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('F3'), ['F', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('G3'), ['G', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('A3'), ['A', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('B3'), ['B', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('C4'), ['C', '', 4]);
-    assert.deepStrictEqual(tokenizeNote('D5'), ['D', '', 5]);
+    expect(tokenizeNote('C3')).toStrictEqual(['C', '', 3]);
+    expect(tokenizeNote('D3')).toStrictEqual(['D', '', 3]);
+    expect(tokenizeNote('E3')).toStrictEqual(['E', '', 3]);
+    expect(tokenizeNote('F3')).toStrictEqual(['F', '', 3]);
+    expect(tokenizeNote('G3')).toStrictEqual(['G', '', 3]);
+    expect(tokenizeNote('A3')).toStrictEqual(['A', '', 3]);
+    expect(tokenizeNote('B3')).toStrictEqual(['B', '', 3]);
+    expect(tokenizeNote('C4')).toStrictEqual(['C', '', 4]);
+    expect(tokenizeNote('D5')).toStrictEqual(['D', '', 5]);
   });
   it('should tokenize notes with accidentals', () => {
-    assert.deepStrictEqual(tokenizeNote('C#3'), ['C', '#', 3]);
-    assert.deepStrictEqual(tokenizeNote('D##3'), ['D', '##', 3]);
-    assert.deepStrictEqual(tokenizeNote('Eb3'), ['E', 'b', 3]);
-    assert.deepStrictEqual(tokenizeNote('Fbb3'), ['F', 'bb', 3]);
-    assert.deepStrictEqual(tokenizeNote('Bb5'), ['B', 'b', 5]);
+    expect(tokenizeNote('C#3')).toStrictEqual(['C', '#', 3]);
+    expect(tokenizeNote('D##3')).toStrictEqual(['D', '##', 3]);
+    expect(tokenizeNote('Eb3')).toStrictEqual(['E', 'b', 3]);
+    expect(tokenizeNote('Fbb3')).toStrictEqual(['F', 'bb', 3]);
+    expect(tokenizeNote('Bb5')).toStrictEqual(['B', 'b', 5]);
   });
   it('should tokenize notes without octave', () => {
-    assert.deepStrictEqual(tokenizeNote('C'), ['C', '', undefined]);
-    assert.deepStrictEqual(tokenizeNote('C#'), ['C', '#', undefined]);
-    assert.deepStrictEqual(tokenizeNote('Bb'), ['B', 'b', undefined]);
-    assert.deepStrictEqual(tokenizeNote('Bbb'), ['B', 'bb', undefined]);
+    expect(tokenizeNote('C')).toStrictEqual(['C', '', undefined]);
+    expect(tokenizeNote('C#')).toStrictEqual(['C', '#', undefined]);
+    expect(tokenizeNote('Bb')).toStrictEqual(['B', 'b', undefined]);
+    expect(tokenizeNote('Bbb')).toStrictEqual(['B', 'bb', undefined]);
   });
   it('should not tokenize invalid notes', () => {
-    assert.deepStrictEqual(tokenizeNote('X'), []);
-    assert.deepStrictEqual(tokenizeNote('asfasf'), []);
-    assert.deepStrictEqual(tokenizeNote(123), []);
+    expect(tokenizeNote('X')).toStrictEqual([]);
+    expect(tokenizeNote('asfasf')).toStrictEqual([]);
+    expect(tokenizeNote(123)).toStrictEqual([]);
   });
 });
 describe('toMidi', () => {
   it('should turn notes into midi', () => {
-    assert.equal(toMidi('A4'), 69);
-    assert.equal(toMidi('C4'), 60);
-    assert.equal(toMidi('Db4'), 61);
-    assert.equal(toMidi('C3'), 48);
-    assert.equal(toMidi('Cb3'), 47);
-    assert.equal(toMidi('Cbb3'), 46);
-    assert.equal(toMidi('C#3'), 49);
-    assert.equal(toMidi('C#3'), 49);
-    assert.equal(toMidi('C##3'), 50);
+    expect(toMidi('A4')).toEqual(69);
+    expect(toMidi('C4')).toEqual(60);
+    expect(toMidi('Db4')).toEqual(61);
+    expect(toMidi('C3')).toEqual(48);
+    expect(toMidi('Cb3')).toEqual(47);
+    expect(toMidi('Cbb3')).toEqual(46);
+    expect(toMidi('C#3')).toEqual(49);
+    expect(toMidi('C#3')).toEqual(49);
+    expect(toMidi('C##3')).toEqual(50);
+  });
+  it('should throw an error when given a non-note', () => {
+    expect(() => toMidi('Q')).toThrowError(`not a note: "Q"`);
+    expect(() => toMidi('Z')).toThrowError(`not a note: "Z"`);
   });
 });
 describe('fromMidi', () => {
   it('should turn midi into frequency', () => {
-    assert.equal(fromMidi(69), 440);
-    assert.equal(fromMidi(57), 220);
+    expect(fromMidi(69)).toEqual(440);
+    expect(fromMidi(57)).toEqual(220);
+  });
+});
+describe('freqToMidi', () => {
+  it('should turn frequency into midi', () => {
+    expect(freqToMidi(440)).toEqual(69);
+    expect(freqToMidi(220)).toEqual(57);
   });
 });
 describe('getFrequency', () => {
+  const happify = (val, context = {}) => pure(val).firstCycle()[0].setContext(context);
+  it('should turn note into frequency', () => {
+    expect(getFrequency(happify('a4'))).toEqual(440);
+    expect(getFrequency(happify('a3'))).toEqual(220);
+  });
   it('should turn midi into frequency', () => {
-    const happify = (val, context = {}) => pure(val).firstCycle()[0].setContext(context);
-    assert.equal(getFrequency(happify('a4')), 440);
-    assert.equal(getFrequency(happify('a3')), 220);
-    assert.equal(getFrequency(happify(440, { type: 'frequency' })), 440); // TODO: migrate when values are objects..
-    assert.equal(getFrequency(happify(432, { type: 'frequency' })), 432);
+    expect(getFrequency(happify(69, { type: 'midi' }))).toEqual(440);
+    expect(getFrequency(happify(57, { type: 'midi' }))).toEqual(220);
+  });
+  it('should return frequencies unchanged', () => {
+    expect(getFrequency(happify(440, { type: 'frequency' }))).toEqual(440);
+    expect(getFrequency(happify(432, { type: 'frequency' }))).toEqual(432);
+  });
+  it('should turn object with a "freq" property into frequency', () => {
+    expect(getFrequency(happify({ freq: 220 }))).toEqual(220);
+    expect(getFrequency(happify({ freq: 440 }))).toEqual(440);
+  });
+  it('should throw an error when given a non-note', () => {
+    expect(() => getFrequency(happify('Q'))).toThrowError(`not a note or frequency: Q`);
+    expect(() => getFrequency(happify('Z'))).toThrowError(`not a note or frequency: Z`);
   });
 });
 
-describe('mod', () => {
+describe('_mod', () => {
   it('should work like regular modulo with positive numbers', () => {
-    assert.equal(mod(0, 3), 0);
-    assert.equal(mod(1, 3), 1);
-    assert.equal(mod(2, 3), 2);
-    assert.equal(mod(3, 3), 0);
-    assert.equal(mod(4, 3), 1);
-    assert.equal(mod(4, 2), 0);
+    expect(_mod(0, 3)).toEqual(0);
+    expect(_mod(1, 3)).toEqual(1);
+    expect(_mod(2, 3)).toEqual(2);
+    expect(_mod(3, 3)).toEqual(0);
+    expect(_mod(4, 3)).toEqual(1);
+    expect(_mod(4, 2)).toEqual(0);
   });
   it('should work with negative numbers', () => {
-    assert.equal(mod(-1, 3), 2);
-    assert.equal(mod(-2, 3), 1);
-    assert.equal(mod(-3, 3), 0);
-    assert.equal(mod(-4, 3), 2);
-    assert.equal(mod(-5, 3), 1);
-    assert.equal(mod(-3, 2), 1);
+    expect(_mod(-1, 3)).toEqual(2);
+    expect(_mod(-2, 3)).toEqual(1);
+    expect(_mod(-3, 3)).toEqual(0);
+    expect(_mod(-4, 3)).toEqual(2);
+    expect(_mod(-5, 3)).toEqual(1);
+    expect(_mod(-3, 2)).toEqual(1);
   });
 });
 
 describe('compose', () => {
   const add1 = (a) => a + 1;
   it('should compose', () => {
-    assert.equal(compose(add1, add1)(0), 2);
-    assert.equal(compose(add1)(0), 1);
+    expect(compose(add1, add1)(0)).toEqual(2);
+    expect(compose(add1)(0)).toEqual(1);
   });
   const addS = (s) => (a) => a + s;
   it('should compose left to right', () => {
-    assert.equal(compose(addS('a'), addS('b'))(''), 'ab');
-    assert.equal(compose(addS('a'), addS('b'))('x'), 'xab');
+    expect(compose(addS('a'), addS('b'))('')).toEqual('ab');
+    expect(compose(addS('a'), addS('b'))('x')).toEqual('xab');
+  });
+});
+
+describe('getPlayableNoteValue', () => {
+  const happify = (val, context = {}) => pure(val).firstCycle()[0].setContext(context);
+  it('should return object "note" property', () => {
+    expect(getPlayableNoteValue(happify({ note: 'a4' }))).toEqual('a4');
+  });
+  it('should return object "n" property', () => {
+    expect(getPlayableNoteValue(happify({ n: 'a4' }))).toEqual('a4');
+  });
+  it('should return object "value" property', () => {
+    expect(getPlayableNoteValue(happify({ value: 'a4' }))).toEqual('a4');
+  });
+  it('should turn midi into frequency', () => {
+    expect(getPlayableNoteValue(happify(57, { type: 'midi' }))).toEqual(220);
+  });
+  it('should return frequency value', () => {
+    expect(getPlayableNoteValue(happify(220, { type: 'frequency' }))).toEqual(220);
+  });
+  it('should throw an error if value is not an object, number, or string', () => {
+    expect(() => getPlayableNoteValue(happify(false))).toThrowError(`not a note: false`);
+    expect(() => getPlayableNoteValue(happify(undefined))).toThrowError(`not a note: undefined`);
+  });
+});
+
+describe('parseNumeral', () => {
+  it('should parse numbers as is', () => {
+    expect(parseNumeral(4)).toBe(4);
+    expect(parseNumeral(0)).toBe(0);
+    expect(parseNumeral(20)).toBe(20);
+    expect(parseNumeral('20')).toBe(20);
+    expect(parseNumeral(1.5)).toBe(1.5);
+  });
+  it('should parse notes', () => {
+    expect(parseNumeral('c')).toBe(48);
+    expect(parseNumeral('c4')).toBe(60);
+    expect(parseNumeral('c#4')).toBe(61);
+    expect(parseNumeral('db4')).toBe(61);
+  });
+  it('should throw an error for unknown strings', () => {
+    expect(() => parseNumeral('xyz')).toThrowError('cannot parse as numeral: "xyz"');
+  });
+});
+
+describe('parseFractional', () => {
+  it('should parse numbers as is', () => {
+    expect(parseFractional(4)).toBe(4);
+    expect(parseFractional(0)).toBe(0);
+    expect(parseFractional(20)).toBe(20);
+    expect(parseFractional('20')).toBe(20);
+    expect(parseFractional(1.5)).toBe(1.5);
+  });
+  it('should parse fractional shorthands values', () => {
+    expect(parseFractional('w')).toBe(1);
+    expect(parseFractional('h')).toBe(0.5);
+    expect(parseFractional('q')).toBe(0.25);
+    expect(parseFractional('e')).toBe(0.125);
+  });
+  it('should throw an error for unknown strings', () => {
+    expect(() => parseFractional('xyz')).toThrowError('cannot parse as fractional: "xyz"');
+  });
+});
+
+describe('numeralArgs', () => {
+  it('should convert function arguments to numbers', () => {
+    const add = numeralArgs((a, b) => a + b);
+    expect(add('c4', 2)).toBe(62);
+  });
+});
+describe('fractionalArgs', () => {
+  it('should convert function arguments to numbers', () => {
+    const add = fractionalArgs((a, b) => a + b);
+    expect(add('q', 2)).toBe(2.25);
   });
 });

packages/core/test/value.test.mjs

@@ -4,21 +4,27 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { strict as assert } from 'assert';
+import { describe, it, expect } from 'vitest';
 import { map, valued, mul } from '../value.mjs';
+import controls from '../controls.mjs';
+const { n } = controls;
 
 describe('Value', () => {
   it('unionWith', () => {
     const { value } = valued({ freq: 2000, distortion: 1.2 }).unionWith({ distortion: 2 }, mul);
-    assert.deepStrictEqual(value, { freq: 2000, distortion: 2.4 });
+    expect(value).toStrictEqual({ freq: 2000, distortion: 2.4 });
   });
 
   it('experiments', () => {
-    assert.equal(map(mul(5), valued(3)).value, 15);
-    assert.equal(map(mul(null), valued(3)).value, 0);
-    assert.equal(map(mul(3), valued(null)).value, null);
-    assert.equal(valued(3).map(mul).ap(3).value, 9);
-    assert.equal(valued(mul).ap(3).ap(3).value, 9);
-    assert.equal(valued(3).mul(3).value, 9);
+    expect(map(mul(5), valued(3)).value).toEqual(15);
+    expect(map(mul(null), valued(3)).value).toEqual(0);
+    expect(map(mul(3), valued(null)).value).toEqual(null);
+    expect(valued(3).map(mul).ap(3).value).toEqual(9);
+    expect(valued(mul).ap(3).ap(3).value).toEqual(9);
+    expect(valued(3).mul(3).value).toEqual(9);
+  });
+  it('union bare numbers for numeral props', () => {
+    expect(n(3).cutoff(500).add(10).firstCycleValues).toEqual([{ n: 13, cutoff: 510 }]);
+    expect(n(3).cutoff(500).mul(2).firstCycleValues).toEqual([{ n: 6, cutoff: 1000 }]);
   });
 });

packages/core/time.mjs

@@ -0,0 +1,11 @@
+let time;
+export function getTime() {
+  if (!time) {
+    throw new Error('no time set! use setTime to define a time source');
+  }
+  return time();
+}
+
+export function setTime(func) {
+  time = func;
+}

packages/core/timespan.mjs

@@ -18,6 +18,11 @@ export class TimeSpan {
     const end = this.end;
     const end_sam = end.sam();
 
+    // Support zero-width timespans
+    if (begin.equals(end)) {
+      return [new TimeSpan(begin, end)];
+    }
+
     while (end.gt(begin)) {
       // If begin and end are in the same cycle, we're done.
       if (begin.sam().equals(end_sam)) {
@@ -105,7 +110,7 @@ export class TimeSpan {
   }
 
   show() {
-    return this.begin.show() + ' -> ' + this.end.show();
+    return this.begin.show() + ' → ' + this.end.show();
   }
 }
 

packages/core/ui.mjs

@@ -4,19 +4,14 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { Tone } from './tone.mjs';
-
-export const hideHeader = () => {
-  document.getElementById('header').style = 'display:none';
-};
+import { getTime } from './time.mjs';
 
 function frame(callback) {
   if (window.strudelAnimation) {
     cancelAnimationFrame(window.strudelAnimation);
   }
   const animate = (animationTime) => {
-    const toneTime = Tone.getTransport().seconds;
-    callback(animationTime, toneTime);
+    callback(animationTime, getTime());
     window.strudelAnimation = requestAnimationFrame(animate);
   };
   requestAnimationFrame(animate);
@@ -51,6 +46,7 @@ export const cleanupUi = () => {
   const container = document.getElementById('code');
   if (container) {
     container.style = '';
-    container.className = 'grow relative'; // has to match App.tsx
+    // TODO: find a way to remove that duplication..
+    container.className = 'grow flex text-gray-100 relative overflow-auto cursor-text pb-0'; // has to match App.tsx
   }
 };

packages/core/util.mjs

@@ -4,8 +4,11 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
+import { Pattern } from './pattern.mjs';
+
 // returns true if the given string is a note
-export const isNote = (name) => /^[a-gA-G][#b]*[0-9]$/.test(name);
+export const isNoteWithOctave = (name) => /^[a-gA-G][#bs]*[0-9]$/.test(name);
+export const isNote = (name) => /^[a-gA-G][#bs]*[0-9]?$/.test(name);
 export const tokenizeNote = (note) => {
   if (typeof note !== 'string') {
     return [];
@@ -19,7 +22,7 @@ export const tokenizeNote = (note) => {
 
 // turns the given note into its midi number representation
 export const toMidi = (note) => {
-  const [pc, acc, oct] = tokenizeNote(note);
+  const [pc, acc, oct = 3] = tokenizeNote(note);
   if (!pc) {
     throw new Error('not a note: "' + note + '"');
   }
@@ -31,17 +34,68 @@ export const fromMidi = (n) => {
   return Math.pow(2, (n - 69) / 12) * 440;
 };
 
-// modulo that works with negative numbers e.g. mod(-1, 3) = 2
-// const mod = (n: number, m: number): number => (n < 0 ? mod(n + m, m) : n % m);
-export const mod = (n, m) => ((n % m) + m) % m;
+export const freqToMidi = (freq) => {
+  return (12 * Math.log(freq / 440)) / Math.LN2 + 69;
+};
+
+export const valueToMidi = (value, fallbackValue) => {
+  if (typeof value !== 'object') {
+    throw new Error('valueToMidi: expected object value');
+  }
+  let { freq, note } = value;
+  if (typeof freq === 'number') {
+    return freqToMidi(freq);
+  }
+  if (typeof note === 'string') {
+    return toMidi(note);
+  }
+  if (typeof note === 'number') {
+    return note;
+  }
+  if (!fallbackValue) {
+    throw new Error('valueToMidi: expected freq or note to be set');
+  }
+  return fallbackValue;
+};
+
+/**
+ * @deprecated does not appear to be referenced or invoked anywhere in the codebase
+ */
+export const getFreq = (noteOrMidi) => {
+  if (typeof noteOrMidi === 'number') {
+    return fromMidi(noteOrMidi);
+  }
+  return fromMidi(toMidi(noteOrMidi));
+};
+
+/**
+ * @deprecated does not appear to be referenced or invoked anywhere in the codebase
+ */
+export const midi2note = (n) => {
+  const oct = Math.floor(n / 12) - 1;
+  const pc = ['C', 'Db', 'D', 'Eb', 'E', 'F', 'Gb', 'G', 'Ab', 'A', 'Bb', 'B'][n % 12];
+  return pc + oct;
+};
+
+// modulo that works with negative numbers e.g. _mod(-1, 3) = 2. Works on numbers (rather than patterns of numbers, as @mod@ from pattern.mjs does)
+export const _mod = (n, m) => ((n % m) + m) % m;
 
 export const getPlayableNoteValue = (hap) => {
-  let { value: note, context } = hap;
+  let { value, context } = hap;
+  let note = value;
+  if (typeof note === 'object' && !Array.isArray(note)) {
+    note = note.note || note.n || note.value;
+    if (note === undefined) {
+      throw new Error(`cannot find a playable note for ${JSON.stringify(value)}`);
+    }
+  }
   // if value is number => interpret as midi number as long as its not marked as frequency
   if (typeof note === 'number' && context.type !== 'frequency') {
     note = fromMidi(hap.value);
-  } else if (typeof note === 'string' && !isNote(note)) {
-    throw new Error('not a note: ' + note);
+  } else if (typeof note === 'number' && context.type === 'frequency') {
+    note = hap.value; // legacy workaround.. will be removed in the future
+  } else if (typeof note !== 'string' || !isNote(note)) {
+    throw new Error('not a note: ' + JSON.stringify(note));
   }
   return note;
 };
@@ -49,15 +103,18 @@ export const getPlayableNoteValue = (hap) => {
 export const getFrequency = (hap) => {
   let { value, context } = hap;
   // if value is number => interpret as midi number as long as its not marked as frequency
-  if (typeof value === 'object' && value.freq) {
-    return value.freq;
+  if (typeof value === 'object') {
+    if (value.freq) {
+      return value.freq;
+    }
+    return getFreq(value.note || value.n || value.value);
   }
   if (typeof value === 'number' && context.type !== 'frequency') {
     value = fromMidi(hap.value);
   } else if (typeof value === 'string' && isNote(value)) {
     value = fromMidi(toMidi(hap.value));
   } else if (typeof value !== 'number') {
-    throw new Error('not a note or frequency:' + value);
+    throw new Error('not a note or frequency: ' + value);
   }
   return value;
 };
@@ -86,14 +143,33 @@ export const constant = (a, b) => a;
 
 export const listRange = (min, max) => Array.from({ length: max - min + 1 }, (_, i) => i + min);
 
-export function curry(func, overload) {
+export function curry(func, overload, arity = func.length) {
   const fn = function curried(...args) {
-    if (args.length >= func.length) {
+    if (args.length >= arity) {
       return func.apply(this, args);
     } else {
       const partial = function (...args2) {
         return curried.apply(this, args.concat(args2));
       };
+
+      if (args.length == arity - 1) {
+        // The penultimate arg.. so add some composition magic
+        // TODO - To make this useful, we also need to add stub functions for every pattern method to
+        // do the actual composing
+        for (const r of Pattern.__registered) {
+          partial[r] = function (...args) {
+            const result = new Pattern(() => []);
+            result.__compose = function (pat) {
+              return partial(pat)[r](...args);
+            };
+            return result;
+          };
+        }
+        partial.__compose = function (pat) {
+          return partial(pat);
+        };
+      }
+
       if (overload) {
         overload(partial, args);
       }
@@ -106,3 +182,46 @@ export function curry(func, overload) {
   }
   return fn;
 }
+
+export function parseNumeral(numOrString) {
+  const asNumber = Number(numOrString);
+  if (!isNaN(asNumber)) {
+    return asNumber;
+  }
+  if (isNote(numOrString)) {
+    return toMidi(numOrString);
+  }
+  throw new Error(`cannot parse as numeral: "${numOrString}"`);
+}
+
+export function mapArgs(fn, mapFn) {
+  return (...args) => fn(...args.map(mapFn));
+}
+
+export function numeralArgs(fn) {
+  return mapArgs(fn, parseNumeral);
+}
+
+export function parseFractional(numOrString) {
+  const asNumber = Number(numOrString);
+  if (!isNaN(asNumber)) {
+    return asNumber;
+  }
+  const specialValue = {
+    pi: Math.PI,
+    w: 1,
+    h: 0.5,
+    q: 0.25,
+    e: 0.125,
+    s: 0.0625,
+    t: 1 / 3,
+    f: 0.2,
+    x: 1 / 6,
+  }[numOrString];
+  if (typeof specialValue !== 'undefined') {
+    return specialValue;
+  }
+  throw new Error(`cannot parse as fractional: "${numOrString}"`);
+}
+
+export const fractionalArgs = (fn) => mapArgs(fn, parseFractional);

packages/core/value.mjs

@@ -7,6 +7,13 @@ This program is free software: you can redistribute it and/or modify it under th
 import { curry } from './util.mjs';
 
 export function unionWithObj(a, b, func) {
+  if (typeof b?.value === 'number') {
+    // https://github.com/tidalcycles/strudel/issues/262
+    const numKeys = Object.keys(a).filter((k) => typeof a[k] === 'number');
+    const numerals = Object.fromEntries(numKeys.map((k) => [k, b.value]));
+    b = Object.assign(b, numerals);
+    delete b.value;
+  }
   const common = Object.keys(a).filter((k) => Object.keys(b).includes(k));
   return Object.assign({}, a, b, Object.fromEntries(common.map((k) => [k, func(a[k], b[k])])));
 }

packages/core/zyklus.mjs

@@ -0,0 +1,49 @@
+// will move to https://github.com/felixroos/zyklus
+// TODO: started flag
+
+function createClock(
+  getTime,
+  callback, // called slightly before each cycle
+  duration = 0.05, // duration of each cycle
+  interval = 0.1, // interval between callbacks
+  overlap = 0.1, // overlap between callbacks
+) {
+  let tick = 0; // counts callbacks
+  let phase = 0; // next callback time
+  let precision = 10 ** 4; // used to round phase
+  let minLatency = 0.01;
+  const setDuration = (setter) => (duration = setter(duration));
+  overlap = overlap || interval / 2;
+  const onTick = () => {
+    const t = getTime();
+    const lookahead = t + interval + overlap; // the time window for this tick
+    if (phase === 0) {
+      phase = t + minLatency;
+    }
+    // callback as long as we're inside the lookahead
+    while (phase < lookahead) {
+      phase = Math.round(phase * precision) / precision;
+      phase >= t && callback(phase, duration, tick);
+      phase < t && console.log('TOO LATE', phase); // what if latency is added from outside?
+      phase += duration; // increment phase by duration
+      tick++;
+    }
+  };
+  let intervalID;
+  const start = () => {
+    clear(); // just in case start was called more than once
+    onTick();
+    intervalID = setInterval(onTick, interval * 1000);
+  };
+  const clear = () => intervalID !== undefined && clearInterval(intervalID);
+  const pause = () => clear();
+  const stop = () => {
+    tick = 0;
+    phase = 0;
+    clear();
+  };
+  const getPhase = () => phase;
+  // setCallback
+  return { setDuration, start, stop, pause, duration, getPhase, minLatency };
+}
+export default createClock;

packages/csound/csound.mjs

@@ -0,0 +1,170 @@
+import { getFrequency, logger, register } from '@strudel.cycles/core';
+import { getAudioContext } from '@strudel.cycles/webaudio';
+import csd from './project.csd?raw';
+// import livecodeOrc from './livecode.orc?raw';
+import presetsOrc from './presets.orc?raw';
+
+let csoundLoader, _csound;
+
+// initializes csound + can be used to reevaluate given instrument code
+export async function loadCSound(code = '') {
+  await init();
+  if (code) {
+    code = `${code}`;
+    //     ^       ^
+    // wrapping in backticks makes sure it works when calling as templated function
+    await _csound?.evalCode(code);
+  }
+}
+export const loadcsound = loadCSound;
+export const loadCsound = loadCSound;
+
+export const csound = register('csound', (instrument, pat) => {
+  instrument = instrument || 'triangle';
+  init(); // not async to support csound inside other patterns + to be able to call pattern methods after it
+  // TODO: find a alternative way to wait for csound to load (to wait with first time playback)
+  return pat.onTrigger((time, hap) => {
+    if (!_csound) {
+      logger('[csound] not loaded yet', 'warning');
+      return;
+    }
+    if (typeof hap.value !== 'object') {
+      throw new Error('csound only support objects as hap values');
+    }
+    let { gain = 0.8 } = hap.value;
+    gain *= 0.2;
+
+    const freq = Math.round(getFrequency(hap));
+    const controls = Object.entries({ ...hap.value, freq })
+      .flat()
+      .join('/');
+    // TODO: find out how to send a precise ctx based time
+    // http://www.csounds.com/manual/html/i.html
+    const params = [
+      `"${instrument}"`, // p1: instrument name
+      time - getAudioContext().currentTime, //.toFixed(precision), // p2: starting time in arbitrary unit called beats
+      hap.duration + 0, // p3: duration in beats
+      // instrument specific params:
+      freq, //.toFixed(precision), // p4: frequency
+      gain, // p5: gain
+      `"${controls}"`, // p6 controls as string (like superdirt osc message)
+    ];
+    const msg = `i ${params.join(' ')}`;
+    _csound.inputMessage(msg);
+  });
+});
+
+function eventLogger(type, args) {
+  const [msg] = args;
+  if (
+    type === 'message' &&
+    (['[commit: HEAD]'].includes(msg) ||
+      msg.startsWith('--Csound version') ||
+      msg.startsWith('libsndfile') ||
+      msg.startsWith('sr =') ||
+      msg.startsWith('0dBFS') ||
+      msg.startsWith('audio buffered') ||
+      msg.startsWith('writing') ||
+      msg.startsWith('SECTION 1:'))
+  ) {
+    // ignore
+    return;
+  }
+  let logType = 'info';
+  if (msg.startsWith('error:')) {
+    logType = 'error';
+  }
+  logger(`[csound] ${msg || ''}`, logType);
+}
+
+async function load() {
+  if (window.__csound__) {
+    // Allows using some other csound instance.
+    // In that case, the external Csound is responsible
+    // for compiling an orchestra and starting to perform.
+    logger('[load] Using external Csound', 'warning');
+    _csound = window.__csound__;
+    return _csound;
+  } else {
+    const { Csound } = await import('@csound/browser');
+    _csound = await Csound({ audioContext: getAudioContext() });
+    _csound.removeAllListeners('message');
+    ['message'].forEach((k) => _csound.on(k, (...args) => eventLogger(k, args)));
+    await _csound.setOption('-m0d'); // see -m flag https://csound.com/docs/manual/CommandFlags.html
+    await _csound.setOption('--sample-accurate');
+    await _csound.compileCsdText(csd);
+    // await _csound.compileOrc(livecodeOrc);
+    await _csound.compileOrc(presetsOrc);
+    await _csound.start();
+    return _csound;
+  }
+}
+
+async function init() {
+  csoundLoader = csoundLoader || load();
+  return csoundLoader;
+}
+
+let orcCache = {};
+export async function loadOrc(url) {
+  await init();
+  if (typeof url !== 'string') {
+    throw new Error('loadOrc: expected url string');
+  }
+  if (url.startsWith('github:')) {
+    const [_, path] = url.split('github:');
+    url = `https://raw.githubusercontent.com/${path}`;
+  }
+  if (!orcCache[url]) {
+    orcCache[url] = fetch(url)
+      .then((res) => res.text())
+      .then((code) => _csound.compileOrc(code));
+  }
+  await orcCache[url];
+}
+
+/**
+ * Sends notes to Csound for rendering with MIDI semantics. The hap value is
+ * translated to these Csound pfields:
+ *
+ *  p1 -- Csound instrument either as a number (1-based, can be a fraction),
+ *        or as a string name.
+ *  p2 -- time in beats (usually seconds) from start of performance.
+ *  p3 -- duration in beats (usually seconds).
+ *  p4 -- MIDI key number (as a real number, not an integer but in [0, 127].
+ *  p5 -- MIDI velocity (as a real number, not an integer but in [0, 127].
+ *  p6 -- Strudel controls, as a string.
+ */
+export const csoundm = register('csoundm', (instrument, pat) => {
+  let p1 = instrument;
+  if (typeof instrument === 'string') {
+    p1 = `"{instrument}"`;
+  }
+  init(); // not async to support csound inside other patterns + to be able to call pattern methods after it
+  return pat.onTrigger((tidal_time, hap) => {
+    if (!_csound) {
+      logger('[csound] not loaded yet', 'warning');
+      return;
+    }
+    if (typeof hap.value !== 'object') {
+      throw new Error('csound only support objects as hap values');
+    }
+    // Time in seconds counting from now.
+    const p2 = tidal_time - getAudioContext().currentTime;
+    const p3 = hap.duration.valueOf() + 0;
+    const frequency = getFrequency(hap);
+    // Translate frequency to MIDI key number _without_ rounding.
+    const C4 = 261.62558;
+    let octave = Math.log(frequency / C4) / Math.log(2.0) + 8.0;
+    const p4 = octave * 12.0 - 36.0;
+    // We prefer floating point precision, but over the MIDI range [0, 127].
+    const p5 = 127 * (hap.context?.velocity ?? 0.9);
+    // The Strudel controls as a string.
+    const p6 = Object.entries({ ...hap.value, frequency })
+      .flat()
+      .join('/');
+    const i_statement = `i ${p1} ${p2} ${p3} ${p4} ${p5} "${p6}"`;
+    console.log('[csoundm]:', i_statement);
+    _csound.inputMessage(i_statement);
+  });
+});

packages/csound/package.json

@@ -0,0 +1,32 @@
+{
+  "name": "@strudel.cycles/csound",
+  "version": "0.5.1",
+  "description": "csound bindings for strudel",
+  "main": "csound.mjs",
+  "scripts": {
+    "test": "echo \"No tests present.\" && exit 0"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/tidalcycles/strudel.git"
+  },
+  "keywords": [
+    "tidalcycles",
+    "strudel",
+    "pattern",
+    "livecoding",
+    "algorave"
+  ],
+  "author": "Felix Roos <flix91@gmail.com>",
+  "contributors": [
+    "Alex McLean <alex@slab.org>"
+  ],
+  "license": "AGPL-3.0-or-later",
+  "bugs": {
+    "url": "https://github.com/tidalcycles/strudel/issues"
+  },
+  "homepage": "https://github.com/tidalcycles/strudel#readme",
+  "dependencies": {
+    "@csound/browser": "^6.18.3"
+  }
+}

packages/csound/presets.orc

@@ -0,0 +1,96 @@
+; returns value of given key in given "string map"
+; keymap("freq", "note/c3/freq/220/gain/0.5")
+; yields "220"
+opcode keymap, S, SS
+  Skey, Smap xin
+  idelimiter = strindex(Smap, strcat(Skey, "/"))
+  ifrom = idelimiter + strlen(Skey) + 1
+  Svalue = strsub(Smap, ifrom, strlen(Smap))
+  Svalue = strsub(Svalue, 0, strindex(Svalue, "/"))
+  xout Svalue
+endop
+
+; TODO add incredibly dope synths
+instr organ
+    iduration = p3
+    ifreq = p4
+    igain = p5
+    ioct = octcps(ifreq)
+
+    asig = vco2(igain, ifreq, 12, .5) ; my edit
+    kpwm = oscili(.1, 5)
+    asig = vco2(igain, ifreq, 4, .5 + kpwm)
+    asig += vco2(igain/4, ifreq * 2)
+
+    ; filter
+    ; idepth = 2
+    ; acut = transegr:a(0, .005, 0, idepth, .06, -4.2, 0.001, .01, -4.2, 0) ; filter envelope
+    ; asig = zdf_2pole(asig, cpsoct(ioct + acut), 0.5)
+
+    ; amp envelope
+    iattack = .001
+    irelease = .05
+    asig *= linsegr:a(0, iattack, 1, iduration, 1, irelease, 0)
+
+    out(asig, asig)
+
+endin
+
+instr triangle
+  iduration = p3
+  ifreq = p4
+  igain = p5
+  ioct = octcps(ifreq)
+  
+  asig = vco2(igain, ifreq, 12, .5)
+  
+  ; amp envelope
+  iattack = .001
+  irelease = .05
+  asig *= linsegr:a(0, iattack, 1, iduration, 1, irelease, 0)
+  
+  out(asig, asig)
+endin
+
+instr pad
+    iduration = p3
+    ifreq = p4
+    igain = p5
+    ioct = octcps(ifreq)
+
+    asig = vco2(igain, ifreq, 0)
+
+    ; amp envelope
+    iattack = .5
+    irelease = .1
+    asig *= linsegr:a(0, iattack, 1, iduration, 1, irelease, 0)
+    
+    idepth = 2
+    acut = transegr:a(0, .005, 0, idepth, .06, -4.2, 0.001, .01, -4.2, 0)
+    asig = zdf_2pole(asig, 1000, 2)
+
+    out(asig, asig)
+endin
+
+
+gisine	ftgen	0, 0, 4096, 10, 1
+
+instr bow
+    kpres = 2
+    krat = 0.16
+    kvibf = 6.12723
+    
+    kvib  linseg 0, 0.5, 0, 1, 1, p3-0.5, 1	
+    kvamp = kvib * 0.01
+    asig  wgbow .7, p4, kpres, krat, kvibf, kvamp, gisine
+    asig = asig*p5
+    outs asig, asig
+endin
+
+
+instr Meta
+    Smap = strget(p6)
+    Sinstrument = keymap("s", Smap)
+    schedule(Sinstrument, 0, p3, p4, p5)
+    ; TODO find a way to pipe Sinstrument through effects
+endin

packages/csound/project.csd

@@ -0,0 +1,10 @@
+<CsoundSynthesizer>
+<CsInstruments>
+
+sr=48000
+ksmps=64
+nchnls=2
+0dbfs=1
+
+</CsInstruments>
+</CsoundSynthesizer>

packages/embed/README.md

@@ -10,16 +10,22 @@ Either install with `npm i @strudel.cycles/embed` or just use a cdn to import th
 <script src="https://unpkg.com/@strudel.cycles/embed@latest"></script>
 <strudel-repl>
   <!--
-      "a4 [a3 c3] a3 c3".color('#F9D649')
-    .sub("<7 12 5 12>".slow(2))
-    .off(1/4,x=>x.add(7).color("#FFFFFF #0C3AA1 #C63928"))
-    .off(1/8,x=>x.add(12).color('#215CB6'))
-    .slow(2)
-    .legato(sine.range(0.3, 2).slow(28))
-    .wave("sawtooth square".fast(2))
-    .filter('lowpass', cosine.range(500,4000).slow(16))
-    .out()
-    .pianoroll({minMidi:20,maxMidi:120,background:'#202124'})
+note(`[[e5 [b4 c5] d5 [c5 b4]]
+[a4 [a4 c5] e5 [d5 c5]]
+[b4 [~ c5] d5 e5]
+[c5 a4 a4 ~]
+[[~ d5] [~ f5] a5 [g5 f5]]
+[e5 [~ c5] e5 [d5 c5]]
+[b4 [b4 c5] d5 e5]
+[c5 a4 a4 ~]],
+[[e2 e3]*4]
+[[a2 a3]*4]
+[[g#2 g#3]*2 [e2 e3]*2]
+[a2 a3 a2 a3 a2 a3 b1 c2]
+[[d2 d3]*4]
+[[c2 c3]*4]
+[[b1 b2]*2 [e2 e3]*2]
+[[a1 a2]*4]`).slow(16)
       -->
 </strudel-repl>
 ```

packages/embed/example.html

@@ -2,15 +2,21 @@
 <!-- <script src="./embed.js"></script> -->
 <strudel-repl>
   <!--
-      "a4 [a3 c3] a3 c3".color('#F9D649')
-    .sub("<7 12 5 12>".slow(2))
-    .off(1/4,x=>x.add(7).color("#FFFFFF #0C3AA1 #C63928"))
-    .off(1/8,x=>x.add(12).color('#215CB6'))
-    .slow(2)
-    .legato(sine.range(0.3, 2).slow(28))
-    .wave("sawtooth square".fast(2))
-    .filter('lowpass', cosine.range(500,4000).slow(16))
-    .out()
-    .pianoroll({minMidi:20,maxMidi:120,background:'#202124'})
+note(`[[e5 [b4 c5] d5 [c5 b4]]
+[a4 [a4 c5] e5 [d5 c5]]
+[b4 [~ c5] d5 e5]
+[c5 a4 a4 ~]
+[[~ d5] [~ f5] a5 [g5 f5]]
+[e5 [~ c5] e5 [d5 c5]]
+[b4 [b4 c5] d5 e5]
+[c5 a4 a4 ~]],
+[[e2 e3]*4]
+[[a2 a3]*4]
+[[g#2 g#3]*2 [e2 e3]*2]
+[a2 a3 a2 a3 a2 a3 b1 c2]
+[[d2 d3]*4]
+[[c2 c3]*4]
+[[b1 b2]*2 [e2 e3]*2]
+[[a1 a2]*4]`).slow(16)
       -->
 </strudel-repl>

packages/embed/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@strudel.cycles/embed",
-  "version": "0.1.1",
+  "version": "0.2.0",
   "description": "Embeddable Web Component to load a Strudel REPL into an iframe",
   "main": "embed.js",
   "type": "module",

packages/eval/README.md

@@ -11,10 +11,9 @@ npm i @strudel.cycles/eval --save
 
 ## Example
 
-<!-- TODO: -extend +evalScope -->
-
 ```js
-import { evaluate, extend } from '@strudel.cycles/eval';
+import { evalScope } from '@strudel.cycles/core';
+import { evaluate } from '@strudel.cycles/eval';
 
 evalScope(
   import('@strudel.cycles/core'),

packages/eval/evaluate.mjs

@@ -4,46 +4,9 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
+import { evaluate as _evaluate } from '@strudel.cycles/core';
 import shapeshifter from './shapeshifter.mjs';
-import * as strudel from '@strudel.cycles/core';
-
-const { isPattern, Pattern } = strudel;
-
-export const extend = (...args) => {
-  console.warn('@strudel.cycles/eval extend is deprecated, please use evalScope instead');
-  Object.assign(globalThis, ...args);
-};
-
-let scoped = false;
-export const evalScope = async (...args) => {
-  if (scoped) {
-    console.warn('@strudel.cycles/eval evalScope was called more than once.');
-  }
-  scoped = true;
-  const results = await Promise.allSettled(args);
-  const modules = results.filter((result) => result.status === 'fulfilled').map((r) => r.value);
-  results.forEach((result, i) => {
-    if (result.status === 'rejected') {
-      console.warn(`evalScope: module with index ${i} could not be loaded:`, result.reason);
-    }
-  });
-  Object.assign(globalThis, ...modules, Pattern.prototype.bootstrap());
-};
-
-function safeEval(str) {
-  return Function('"use strict";return (' + str + ')')();
-}
 
 export const evaluate = async (code) => {
-  if (!scoped) {
-    await evalScope(); // at least scope Pattern.prototype.boostrap
-  }
-  const shapeshifted = shapeshifter(code); // transform syntactically correct js code to semantically usable code
-  let evaluated = await safeEval(shapeshifted);
-  if (!isPattern(evaluated)) {
-    console.log('evaluated', evaluated);
-    const message = `got "${typeof evaluated}" instead of pattern`;
-    throw new Error(message + (typeof evaluated === 'function' ? ', did you forget to call a function?' : '.'));
-  }
-  return { mode: 'javascript', pattern: evaluated };
+  return _evaluate(code, shapeshifter);
 };

packages/eval/package-lock.json

@@ -1,6 +1,6 @@
 {
 	"name": "@strudel.cycles/eval",
-	"version": "0.1.3",
+	"version": "0.5.0",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {

packages/eval/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@strudel.cycles/eval",
-  "version": "0.1.3",
+  "version": "0.5.0",
   "description": "Code evaluator for strudel",
   "main": "index.mjs",
   "type": "module",
@@ -8,7 +8,7 @@
     "test": "test"
   },
   "scripts": {
-    "test": "mocha --colors"
+    "test": "vitest run"
   },
   "repository": {
     "type": "git",
@@ -28,12 +28,12 @@
   },
   "homepage": "https://github.com/tidalcycles/strudel#readme",
   "dependencies": {
-    "@strudel.cycles/core": "^0.1.2",
+    "@strudel.cycles/core": "^0.5.0",
     "estraverse": "^5.3.0",
-    "shift-ast": "^6.1.0",
-    "shift-codegen": "^7.0.3",
-    "shift-parser": "^7.0.3",
-    "shift-spec": "^2018.0.2",
+    "shift-ast": "^7.0.0",
+    "shift-codegen": "^8.1.0",
+    "shift-parser": "^8.0.0",
+    "shift-spec": "^2019.0.0",
     "shift-traverser": "^1.0.0"
   }
 }

packages/eval/shapeshifter.mjs

@@ -30,11 +30,12 @@ const isNote = (name) => /^[a-gC-G][bs]?[0-9]$/.test(name);
 const addLocations = true;
 export const addMiniLocations = true;
 export const minifyStrings = true;
-export const wrappedAsync = true;
+export const wrappedAsync = false; // this is now handled by core evaluate by default
+export const shouldAddReturn = true;
 
 export default (_code) => {
   const { code, addReturn } = wrapAsync(_code);
-  const ast = parseScriptWithLocation(code);
+  const ast = parseScriptWithLocation(disguiseImports(code));
   const artificialNodes = [];
   const parents = [];
   const shifted = replace(ast.tree, {
@@ -125,13 +126,25 @@ export default (_code) => {
     },
   });
   // add return to last statement (because it's wrapped in an async function artificially)
-  if (wrappedAsync) {
+  if (shouldAddReturn) {
     addReturn(shifted);
   }
-  const generated = codegen(shifted);
+  const generated = undisguiseImports(codegen(shifted));
   return generated;
 };
 
+// renames all import statements to "_mport" as Shift doesn't support dynamic import.
+// there shouldn't be any side-effects from this as this change does not affect
+// the syntax & will be undone by the equivalent replace in "undisguiseImports".
+function disguiseImports(code) {
+  return code.replaceAll('import', '_mport'); // Must be the same length!
+}
+
+// Rename the renamed import statements back to "import"
+function undisguiseImports(code) {
+  return code.replaceAll('_mport', 'import');
+}
+
 function wrapAsync(code) {
   // wrap code in async to make await work on top level => this will create 1 line offset to locations
   // this is why line offset is -1 in getLocationObject calls below
@@ -141,7 +154,7 @@ ${code}
 })()`;
   }
   const addReturn = (ast) => {
-    const body = ast.statements[0].expression.callee.body; // actual code ast inside async function body
+    const body = wrappedAsync ? ast.statements[0].expression.callee.body : ast;
     body.statements = body.statements
       .slice(0, -1)
       .concat([new ReturnStatement({ expression: body.statements.slice(-1)[0] })]);
@@ -212,9 +225,8 @@ function isPatternArg(parents) {
 function hasModifierCall(parent) {
   // TODO: modifiers are more than composables, for example every is not composable but should be seen as modifier..
   // need all prototypes of Pattern
-  return (
-    parent?.type === 'StaticMemberExpression' && Object.keys(Pattern.prototype.composable).includes(parent.property)
-  );
+  return parent?.type === 'StaticMemberExpression';
+  // && Object.keys(Pattern.prototype.composable).includes(parent.property)
 }
 const factories = Object.keys(Pattern.prototype.factories).concat(['mini']);
 

packages/eval/test/evaluate.test.mjs

@@ -4,31 +4,29 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { strict as assert } from 'assert';
-import { evaluate, extend } from '../evaluate.mjs';
+import { expect, describe, it } from 'vitest';
+
+import { evaluate } from '../evaluate.mjs';
 import { mini } from '@strudel.cycles/mini';
 import * as strudel from '@strudel.cycles/core';
+const { fastcat, evalScope } = strudel;
 
-const { fastcat } = strudel;
-
-extend({ mini }, strudel);
-// TODO: test evalScope
-
-describe('evaluate', () => {
-  const ev = async (code) => (await evaluate(code)).pattern._firstCycleValues;
+describe('evaluate', async () => {
+  await evalScope({ mini }, strudel);
+  const ev = async (code) => (await evaluate(code)).pattern.firstCycleValues;
   it('Should evaluate strudel functions', async () => {
-    assert.deepStrictEqual(await ev("pure('c3')"), ['c3']);
-    assert.deepStrictEqual(await ev('cat(c3)'), ['c3']);
-    assert.deepStrictEqual(await ev('fastcat(c3, d3)'), ['c3', 'd3']);
-    assert.deepStrictEqual(await ev('slowcat(c3, d3)'), ['c3']);
+    expect(await ev('pure("c3")')).toEqual(['c3']);
+    expect(await ev('cat("c3")')).toEqual(['c3']);
+    expect(await ev('fastcat("c3", "d3")')).toEqual(['c3', 'd3']);
+    expect(await ev('slowcat("c3", "d3")')).toEqual(['c3']);
   });
-  it('Should be extendable', async () => {
-    extend({ myFunction: (...x) => fastcat(...x) });
-    assert.deepStrictEqual(await ev('myFunction(c3, d3)'), ['c3', 'd3']);
+  it('Scope should be extendable', async () => {
+    await evalScope({ myFunction: (...x) => fastcat(...x) });
+    expect(await ev('myFunction("c3", "d3")')).toEqual(['c3', 'd3']);
   });
   it('Should evaluate simple double quoted mini notation', async () => {
-    assert.deepStrictEqual(await ev('"c3"'), ['c3']);
-    assert.deepStrictEqual(await ev('"c3 d3"'), ['c3', 'd3']);
-    assert.deepStrictEqual(await ev('"<c3 d3>"'), ['c3']);
+    expect(await ev('"c3"')).toEqual(['c3']);
+    expect(await ev('"c3 d3"')).toEqual(['c3', 'd3']);
+    expect(await ev('"<c3 d3>"')).toEqual(['c3']);
   });
 });

packages/eval/test/shapeshifter.test.mjs

@@ -4,11 +4,22 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { strict as assert } from 'assert';
-import shapeshifter from '../shapeshifter.mjs';
+import { describe, it, expect } from 'vitest';
+import shapeshifter, { wrappedAsync } from '../shapeshifter.mjs';
 
 describe('shapeshifter', () => {
   it('Should shift simple double quote string', () => {
-    assert.equal(shapeshifter('"c3"'), '(async()=>{return mini("c3").withMiniLocation([1,0,15],[1,4,19])})()');
+    if (wrappedAsync) {
+      expect(shapeshifter('"c3"')).toEqual('(async()=>{return mini("c3").withMiniLocation([1,0,15],[1,4,19])})()');
+    } else {
+      expect(shapeshifter('"c3"')).toEqual('return mini("c3").withMiniLocation([1,0,0],[1,4,4])');
+    }
   });
+  if (wrappedAsync) {
+    it('Should handle dynamic imports', () => {
+      expect(shapeshifter('const { default: foo } = await import(\'https://bar.com/foo.js\');"c3"')).toEqual(
+        'const{default:foo}=await import("https://bar.com/foo.js");return mini("c3").withMiniLocation([1,64,79],[1,68,83])',
+      );
+    });
+  }
 });

packages/midi/midi.mjs

@@ -4,15 +4,23 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { isNote } from 'tone';
-import _WebMidi from 'webmidi';
-import { Pattern, isPattern } from '@strudel.cycles/core';
-import { Tone } from '@strudel.cycles/tone';
+import * as _WebMidi from 'webmidi';
+import { Pattern, isPattern, isNote, getPlayableNoteValue, logger } from '@strudel.cycles/core';
+import { getAudioContext } from '@strudel.cycles/webaudio';
 
 // if you use WebMidi from outside of this package, make sure to import that instance:
-export const WebMidi = _WebMidi;
+export const { WebMidi } = _WebMidi;
 
-export function enableWebMidi() {
+function supportsMidi() {
+  return typeof navigator.requestMIDIAccess === 'function';
+}
+
+export function enableWebMidi(options = {}) {
+  const { onReady, onConnected, onDisconnected } = options;
+
+  if (!supportsMidi()) {
+    throw new Error('Your Browser does not support WebMIDI.');
+  }
   return new Promise((resolve, reject) => {
     if (WebMidi.enabled) {
       // if already enabled, just resolve WebMidi
@@ -23,6 +31,14 @@ export function enableWebMidi() {
       if (err) {
         reject(err);
       }
+      WebMidi.addListener('connected', (e) => {
+        onConnected?.(WebMidi);
+      });
+      // Reacting when a device becomes unavailable
+      WebMidi.addListener('disconnected', (e) => {
+        onDisconnected?.(WebMidi, e);
+      });
+      onReady?.(WebMidi);
       resolve(WebMidi);
     });
   });
@@ -30,55 +46,75 @@ export function enableWebMidi() {
 // const outputByName = (name: string) => WebMidi.getOutputByName(name);
 const outputByName = (name) => WebMidi.getOutputByName(name);
 
+let midiReady;
+
+// output?: string | number, outputs: typeof WebMidi.outputs
+function getDevice(output, outputs) {
+  if (!outputs.length) {
+    throw new Error(`🔌 No MIDI devices found. Connect a device or enable IAC Driver.`);
+  }
+  if (typeof output === 'number') {
+    return outputs[output];
+  }
+  if (typeof output === 'string') {
+    return outputByName(output);
+  }
+  return outputs[0];
+}
+
 // Pattern.prototype.midi = function (output: string | number, channel = 1) {
 Pattern.prototype.midi = function (output, channel = 1) {
-  if (isPattern(output?.constructor?.name)) {
+  if (!supportsMidi()) {
+    throw new Error(`🎹 WebMidi is not enabled. Supported Browsers: https://caniuse.com/?search=webmidi`);
+  }
+  /* await */ enableWebMidi({
+    onConnected: ({ outputs }) =>
+      logger(`Midi device connected! Available: ${outputs.map((o) => `'${o.name}'`).join(', ')}`),
+    onDisconnected: ({ outputs }) =>
+      logger(`Midi device disconnected! Available: ${outputs.map((o) => `'${o.name}'`).join(', ')}`),
+    onReady: ({ outputs }) => {
+      const device = getDevice(output, outputs);
+      const otherOutputs = outputs
+        .filter((o) => o.name !== device.name)
+        .map((o) => `'${o.name}'`)
+        .join(' | ');
+      midiReady = true;
+      logger(`Midi connected! Using "${device.name}". ${otherOutputs ? `Also available: ${otherOutputs}` : ''}`);
+    },
+  });
+  if (isPattern(output)) {
     throw new Error(
       `.midi does not accept Pattern input. Make sure to pass device name with single quotes. Example: .midi('${
         WebMidi.outputs?.[0]?.name || 'IAC Driver Bus 1'
       }')`,
     );
   }
-  return this._withHap((hap) => {
-    // const onTrigger = (time: number, hap: any) => {
-    const onTrigger = (time, hap) => {
-      let note = hap.value;
-      const velocity = hap.context?.velocity ?? 0.9;
-      if (!isNote(note)) {
-        throw new Error('not a note: ' + note);
-      }
-      if (!WebMidi.enabled) {
-        throw new Error(`🎹 WebMidi is not enabled. Supported Browsers: https://caniuse.com/?search=webmidi`);
-      }
-      if (!WebMidi.outputs.length) {
-        throw new Error(`🔌 No MIDI devices found. Connect a device or enable IAC Driver.`);
-      }
-      let device;
-      if (typeof output === 'number') {
-        device = WebMidi.outputs[output];
-      } else if (typeof output === 'string') {
-        device = outputByName(output);
-      } else {
-        device = WebMidi.outputs[0];
-      }
-      if (!device) {
-        throw new Error(
-          `🔌 MIDI device '${output ? output : ''}' not found. Use one of ${WebMidi.outputs
-            .map((o) => `'${o.name}'`)
-            .join(' | ')}`,
-        );
-      }
-      // console.log('midi', value, output);
-      const timingOffset = WebMidi.time - Tone.getContext().currentTime * 1000;
-      time = time * 1000 + timingOffset;
-      // const inMs = '+' + (time - Tone.getContext().currentTime) * 1000;
-      // await enableWebMidi()
-      device.playNote(note, channel, {
-        time,
-        duration: hap.duration.valueOf() * 1000 - 5,
-        velocity,
-      });
-    };
-    return hap.setContext({ ...hap.context, onTrigger });
+  return this.onTrigger((time, hap) => {
+    let note = getPlayableNoteValue(hap);
+    const velocity = hap.context?.velocity ?? 0.9;
+    if (!isNote(note)) {
+      throw new Error('not a note: ' + note);
+    }
+    if (!midiReady) {
+      return;
+    }
+    const device = getDevice(output, WebMidi.outputs);
+    if (!device) {
+      throw new Error(
+        `🔌 MIDI device '${output ? output : ''}' not found. Use one of ${WebMidi.outputs
+          .map((o) => `'${o.name}'`)
+          .join(' | ')}`,
+      );
+    }
+    // console.log('midi', value, output);
+    const timingOffset = WebMidi.time - getAudioContext().currentTime * 1000;
+    time = time * 1000 + timingOffset;
+    // const inMs = '+' + (time - Tone.getContext().currentTime) * 1000;
+    // await enableWebMidi()
+    device.playNote(note, channel, {
+      time,
+      duration: hap.duration.valueOf() * 1000 - 5,
+      attack: velocity,
+    });
   });
 };

packages/midi/package-lock.json

@@ -1,6 +1,6 @@
 {
 	"name": "@strudel.cycles/midi",
-	"version": "0.1.3",
+	"version": "0.5.0",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {

packages/midi/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@strudel.cycles/midi",
-  "version": "0.1.3",
+  "version": "0.5.0",
   "description": "Midi API for strudel",
   "main": "index.mjs",
   "repository": {
@@ -21,8 +21,8 @@
   },
   "homepage": "https://github.com/tidalcycles/strudel#readme",
   "dependencies": {
-    "@strudel.cycles/tone": "^0.1.3",
+    "@strudel.cycles/tone": "^0.5.0",
     "tone": "^14.7.77",
-    "webmidi": "^2.5.2"
+    "webmidi": "^3.0.21"
   }
 }

packages/mini/README.md

@@ -32,4 +32,13 @@ yields:
 
 ## Mini Notation API
 
-See "Mini Notation" in the [Strudel Tutorial](https://strudel.tidalcycles.org/tutorial/)
+See "Mini Notation" in the [Strudel Tutorial](https://strudel.tidalcycles.org/learn/mini-notation)
+
+## Building the Parser
+
+The parser [krill-parser.js] is generated from [krill.pegjs](./krill.pegjs) using [peggy](https://peggyjs.org/).
+To generate the parser, run
+
+```js
+npm run build:parser
+```

packages/mini/krill.pegjs

@@ -5,12 +5,20 @@ This program is free software: you can redistribute it and/or modify it under th
 */
 
 // Some terminology:
-// a sequence = a serie of elements placed between quotes
-// a stack = a serie of vertically aligned slices sharing the same overall length
-// a slice = a serie of horizontally aligned elements
+// mini(notation) = a series of elements placed between quotes
+// a stack = a series of vertically aligned slices sharing the same overall length
+// a sequence = a series of horizontally aligned elements
+// a choose = a series of elements, one of which is chosen at random
 
 
 {
+  var AtomStub = function(source)
+  {
+    this.type_ = "atom";
+    this.source_ = source;
+    this.location_ = location();
+  }
+
   var PatternStub = function(source, alignment)
   {
     this.type_ = "pattern";
@@ -81,78 +89,107 @@ DIGIT  = [0-9]
 // ------------------ delimiters ---------------------------
 
 ws "whitespace" = [ \n\r\t]*
-comma = ws "," ws;
+comma = ws "," ws
+pipe = ws "|" ws
 quote = '"' / "'"
 
 // ------------------ steps and cycles ---------------------------
 
 // single step definition (e.g bd)
 step_char =  [0-9a-zA-Z~] / "-" / "#" / "." / "^" / "_" / ":"
-step = ws chars:step_char+ ws { return chars.join("") }
+step = ws chars:step_char+ ws { return new AtomStub(chars.join("")) }
 
 // define a sub cycle e.g. [1 2, 3 [4]]
-sub_cycle = ws  "[" ws s:stack ws "]" ws { return s}
+sub_cycle = ws  "[" ws s:stack_or_choose ws "]" ws { return s }
 
-// define a timeline e.g <1 3 [3 5]>. We simply defer to a stack and change the alignement
-timeline = ws "<" ws sc:single_cycle ws ">" ws
-  { sc.arguments_.alignment = "t"; return sc;}
+// define a polymeter e.g. {1 2, 3 4 5}
+polymeter = ws  "{" ws s:polymeter_stack ws "}" stepsPerCycle:polymeter_steps? ws
+  { s.arguments_.stepsPerCycle = stepsPerCycle ; return s; }
+
+polymeter_steps = "%"a:slice
+  { return a }
+
+// define a step-per-cycle timeline e.g <1 3 [3 5]>. We simply defer to a sequence and
+// change the alignment to slowcat
+slow_sequence = ws "<" ws s:sequence ws ">" ws
+  { s.arguments_.alignment = 'slowcat'; return s; }
 
 // a slice is either a single step or a sub cycle
-slice = step / sub_cycle  / timeline
+slice = step / sub_cycle / polymeter / slow_sequence
 
 // slice modifier affects the timing/size of a slice (e.g. [a b c]@3)
 // at this point, we assume we can represent them as regular sequence operators
-slice_modifier = slice_weight / slice_bjorklund / slice_slow / slice_fast / slice_fixed_step / slice_replicate
+slice_op = op_weight / op_bjorklund / op_slow / op_fast / op_replicate / op_degrade
 
-slice_weight =  "@" a:number
-  { return { weight: a} }
+op_weight =  "@" a:number
+  { return x => x.options_['weight'] = a }
   
-slice_replicate = "!"a:number
-  { return { replicate: a  } }
+op_replicate = "!"a:number
+  { return x => x.options_['reps'] = a }
 
-slice_bjorklund = "(" ws p:number ws comma ws s:number ws comma? ws r:number? ws ")"
-  { return { operator : { type_: "bjorklund", arguments_ :{ pulse: p, step:s, rotation:r || 0 } } } }
+op_bjorklund = "(" ws p:slice_with_ops ws comma ws s:slice_with_ops ws comma? ws r:slice_with_ops? ws ")"
+  { return x => x.options_['ops'].push({ type_: "bjorklund", arguments_ :{ pulse: p, step:s, rotation:r }}) }
 
-slice_slow = "/"a:number
-  { return { operator : { type_: "stretch", arguments_ :{ amount:a } } } }
+op_slow = "/"a:slice
+  { return x => x.options_['ops'].push({ type_: "stretch", arguments_ :{ amount:a, type: 'slow' }}) }
 
-slice_fast = "*"a:number
-  { return { operator : { type_: "stretch", arguments_ :{ amount:"1/"+a } } } }
+op_fast = "*"a:slice
+  { return x => x.options_['ops'].push({ type_: "stretch", arguments_ :{ amount:a, type: 'fast' }}) }
 
-slice_fixed_step = "%"a:number
-  { return { operator : { type_: "fixed-step", arguments_ :{ amount:a } } } }
+op_degrade = "?"a:number?
+  { return x => x.options_['ops'].push({ type_: "degradeBy", arguments_ :{ amount:a } }) }
 
 // a slice with an modifier applied i.e [bd@4 sd@3]@2 hh]
-slice_with_modifier = s:slice o:slice_modifier?
-  { return new ElementStub(s, o);}
+slice_with_ops = s:slice ops:slice_op*
+  { const result = new ElementStub(s, {ops: [], weight: 1, reps: 1});
+    for (const op of ops) {
+      op(result);
+    }
+    return result;
+  }
 
-// a single cycle is a combination of one or more successive slices (as an array). If we
-// have only one element, we skip the array and return the element itself
-single_cycle = s:(slice_with_modifier)+
-  { return new PatternStub(s,"h"); }
+// a sequence is a combination of one or more successive slices (as an array)
+sequence = s:(slice_with_ops)+
+  { return new PatternStub(s, 'fastcat'); }
+
+// a stack is a series of vertically aligned sequence, separated by a comma
+stack_tail = tail:(comma @sequence)+
+  { return { alignment: 'stack', list: tail }; }
+
+// a choose is a series of pipe-separated sequence, one of which is
+// chosen at random, each cycle
+choose_tail = tail:(pipe @sequence)+
+  { return { alignment: 'rand', list: tail }; }
 
-// a stack is a serie of vertically aligned single cycles, separated by a comma
 // if the stack contains only one element, we don't create a stack but return the
 // underlying element
-stack = c:single_cycle cs:(comma v:single_cycle { return v})*
-  { if (cs.length == 0 && c instanceof Object) { return c;} else { cs.unshift(c); return new PatternStub(cs,"v");}  }
+stack_or_choose = head:sequence tail:(stack_tail / choose_tail)?
+  { if (tail && tail.list.length > 0) { return new PatternStub([head, ...tail.list], tail.alignment); } else { return head; } }
 
-// a sequence is a quoted stack
-sequence = ws quote s:stack quote
-  { return s; }
+polymeter_stack = head:sequence tail:stack_tail?
+  { return new PatternStub(tail ? [head, ...tail.list] : [head], 'polymeter'); }
+
+
+// Mini-notation innards ends
+// ---------->8---------->8---------->8---------->8---------->8----------
+// Experimental haskellish parser begins
+
+// mini-notation = a quoted stack
+mini = ws quote sc:stack_or_choose quote
+  { return sc; }
 
 // ------------------ operators ---------------------------
 
 operator = scale / slow / fast / target / bjorklund / struct / rotR / rotL
 
-struct = "struct" ws s:sequence_or_operator
-  { return { name: "struct", args: { sequence:s }}}
+struct = "struct" ws s:mini_or_operator
+  { return { name: "struct", args: { mini:s }}}
 
 target = "target" ws quote s:step quote
   { return { name: "target", args : { name:s}}}
 
 bjorklund = "euclid" ws p:int ws s:int ws r:int?
-  { return { name: "bjorklund", args :{ pulse: parseInt(p), step:parseInt(s) }}}
+  { return { name: "bjorklund", args :{ pulse: p, step:parseInt(s) }}}
 
 slow = "slow" ws a:number
   { return { name: "stretch", args :{ amount: a}}}
@@ -176,27 +213,27 @@ comment = '//' p:([^\n]*)
 group_operator = cat
 
 // cat is another form of timeline
-cat = "cat" ws "[" ws  s:sequence_or_operator ss:(comma v:sequence_or_operator { return v})* ws "]"
-  { ss.unshift(s); return new PatternStub(ss,"t"); }
+cat = "cat" ws "[" ws  s:mini_or_operator ss:(comma v:mini_or_operator { return v})* ws "]"
+  { ss.unshift(s); return new PatternStub(ss, 'slowcat'); }
 
-// ------------------ high level sequence ---------------------------
+// ------------------ high level mini ---------------------------
 
-sequence_or_group =
+mini_or_group =
   group_operator /
-  sequence
+  mini
 
-sequence_or_operator =
-  sg:sequence_or_group ws (comment)*
+mini_or_operator =
+  sg:mini_or_group ws (comment)*
     {return sg}
-  / o:operator ws "$" ws soc:sequence_or_operator
+  / o:operator ws "$" ws soc:mini_or_operator
     { return new OperatorStub(o.name,o.args,soc)}
 
 sequ_or_operator_or_comment =
-  sc: sequence_or_operator
+  sc: mini_or_operator
     { return sc }
    / comment
 
-sequence_definition = s:sequ_or_operator_or_comment
+mini_definition = s:sequ_or_operator_or_comment
 
 // ---------------------- statements ----------------------------
 
@@ -214,4 +251,4 @@ hush = "hush"
 
 // ---------------------- statements ----------------------------
 
-statement = sequence_definition / command
+statement = mini_definition / command

packages/mini/mini.mjs

@@ -6,116 +6,158 @@ This program is free software: you can redistribute it and/or modify it under th
 
 import * as krill from './krill-parser.js';
 import * as strudel from '@strudel.cycles/core';
-import { addMiniLocations } from '@strudel.cycles/eval/shapeshifter.mjs';
 
-const { pure, Pattern, Fraction, stack, slowcat, sequence, timeCat, silence, reify } = strudel;
+/* var _seedState = 0;
+const randOffset = 0.0002;
 
-const applyOptions = (parent) => (pat, i) => {
+function _nextSeed() {
+  return _seedState++;
+} */
+
+const applyOptions = (parent, code) => (pat, i) => {
   const ast = parent.source_[i];
   const options = ast.options_;
-  const operator = options?.operator;
-  if (operator) {
-    switch (operator.type_) {
-      case 'stretch':
-        const speed = Fraction(operator.arguments_.amount).inverse();
-        return reify(pat).fast(speed);
-      case 'bjorklund':
-        return pat.euclid(operator.arguments_.pulse, operator.arguments_.step, operator.arguments_.rotation);
-      // TODO: case 'fixed-step': "%"
+  const ops = options?.ops;
+  if (ops) {
+    for (const op of ops) {
+      switch (op.type_) {
+        case 'stretch': {
+          const legalTypes = ['fast', 'slow'];
+          const { type, amount } = op.arguments_;
+          if (!legalTypes.includes(type)) {
+            throw new Error(`mini: stretch: type must be one of ${legalTypes.join('|')} but got ${type}`);
+          }
+          pat = strudel.reify(pat)[type](patternifyAST(amount, code));
+          break;
+        }
+        case 'bjorklund': {
+          if (op.arguments_.rotation) {
+            pat = pat.euclidRot(
+              patternifyAST(op.arguments_.pulse, code),
+              patternifyAST(op.arguments_.step, code),
+              patternifyAST(op.arguments_.rotation, code),
+            );
+          } else {
+            pat = pat.euclid(patternifyAST(op.arguments_.pulse, code), patternifyAST(op.arguments_.step, code));
+          }
+          break;
+        }
+        case 'degradeBy': {
+          // TODO: find out what is right here
+          // example:
+          /*
+           stack(
+             s("hh*8").degrade(),
+             s("[ht*8]?")
+           )
+        */
+          // above example will only be in sync when _degradeBy is used...
+          // it also seems that the nextSeed will create undeterministic behaviour
+          // as it uses a global _seedState. This is probably the reason for
+          // https://github.com/tidalcycles/strudel/issues/245
+
+          // this is how it was:
+          /* 
+        return strudel.reify(pat)._degradeByWith(
+          strudel.rand.early(randOffset * _nextSeed()).segment(1),
+          op.arguments_.amount ?? 0.5,
+        ); 
+        */
+          pat = strudel.reify(pat).degradeBy(op.arguments_.amount === null ? 0.5 : op.arguments_.amount);
+          break;
+        }
+        default: {
+          console.warn(`operator "${op.type_}" not implemented`);
+        }
+      }
     }
-    console.warn(`operator "${operator.type_}" not implemented`);
-  }
-  if (options?.weight) {
-    // weight is handled by parent
-    return pat;
-  }
-  // TODO: bjorklund e.g. "c3(5,8)"
-  const unimplemented = Object.keys(options || {}).filter((key) => key !== 'operator');
-  if (unimplemented.length) {
-    console.warn(
-      `option${unimplemented.length > 1 ? 's' : ''} ${unimplemented.map((o) => `"${o}"`).join(', ')} not implemented`,
-    );
   }
+
   return pat;
 };
 
 function resolveReplications(ast) {
-  // the general idea here: x!3 = [x*3]@3
-  // could this be made easier?!
-  ast.source_ = ast.source_.map((child) => {
-    const { replicate, ...options } = child.options_ || {};
-    if (replicate) {
-      return {
-        ...child,
-        options_: { ...options, weight: replicate },
-        source_: {
-          type_: 'pattern',
-          arguments_: {
-            alignment: 'h',
-          },
-          source_: [
-            {
-              type_: 'element',
-              source_: child.source_,
-              location_: child.location_,
-              options_: {
-                operator: {
-                  type_: 'stretch',
-                  arguments_: { amount: Fraction(replicate).inverse().toString() },
-                },
-              },
-            },
-          ],
-        },
-      };
-    }
-    return child;
-  });
+  ast.source_ = strudel.flatten(
+    ast.source_.map((child) => {
+      const { reps } = child.options_ || {};
+      if (!reps) {
+        return [child];
+      }
+      delete child.options_.reps;
+      return Array(reps).fill(child);
+    }),
+  );
 }
 
-export function patternifyAST(ast) {
+export function patternifyAST(ast, code) {
   switch (ast.type_) {
-    case 'pattern':
+    case 'pattern': {
       resolveReplications(ast);
-      const children = ast.source_.map(patternifyAST).map(applyOptions(ast));
+      const children = ast.source_.map((child) => patternifyAST(child, code)).map(applyOptions(ast, code));
       const alignment = ast.arguments_.alignment;
-      if (alignment === 'v') {
-        return stack(...children);
+      if (alignment === 'stack') {
+        return strudel.stack(...children);
+      }
+      if (alignment === 'polymeter') {
+        // polymeter
+        const stepsPerCycle = ast.arguments_.stepsPerCycle
+          ? patternifyAST(ast.arguments_.stepsPerCycle, code).fmap((x) => strudel.Fraction(x))
+          : strudel.pure(strudel.Fraction(children.length > 0 ? children[0].__weight : 1));
+
+        const aligned = children.map((child) => child.fast(stepsPerCycle.fmap((x) => x.div(child.__weight || 1))));
+        return strudel.stack(...aligned);
+      }
+      if (alignment === 'rand') {
+        // https://github.com/tidalcycles/strudel/issues/245#issuecomment-1345406422
+        // return strudel.chooseInWith(strudel.rand.early(randOffset * _nextSeed()).segment(1), children);
+        return strudel.chooseCycles(...children);
       }
       const weightedChildren = ast.source_.some((child) => !!child.options_?.weight);
-      if (!weightedChildren && alignment === 't') {
-        return slowcat(...children);
+      if (!weightedChildren && alignment === 'slowcat') {
+        return strudel.slowcat(...children);
       }
       if (weightedChildren) {
-        const pat = timeCat(...ast.source_.map((child, i) => [child.options_?.weight || 1, children[i]]));
-        if (alignment === 't') {
-          const weightSum = ast.source_.reduce((sum, child) => sum + (child.options_?.weight || 1), 0);
+        const weightSum = ast.source_.reduce((sum, child) => sum + (child.options_?.weight || 1), 0);
+        const pat = strudel.timeCat(...ast.source_.map((child, i) => [child.options_?.weight || 1, children[i]]));
+        if (alignment === 'slowcat') {
           return pat._slow(weightSum); // timecat + slow
         }
+        pat.__weight = weightSum;
         return pat;
       }
-      return sequence(...children);
-    case 'element':
+      const pat = strudel.sequence(...children);
+      pat.__weight = children.length;
+      return pat;
+    }
+    case 'element': {
+      return patternifyAST(ast.source_, code);
+    }
+    case 'atom': {
       if (ast.source_ === '~') {
-        return silence;
+        return strudel.silence;
       }
-      if (typeof ast.source_ !== 'object') {
-        if (!addMiniLocations) {
-          return ast.source_;
-        }
-        if (!ast.location_) {
-          console.warn('no location for', ast);
-          return ast.source_;
-        }
-        const { start, end } = ast.location_;
-        const value = !isNaN(Number(ast.source_)) ? Number(ast.source_) : ast.source_;
-        // the following line expects the shapeshifter append .withMiniLocation
-        // because location_ is only relative to the mini string, but we need it relative to whole code
-        return pure(value).withLocation([start.line, start.column, start.offset], [end.line, end.column, end.offset]);
+      if (!ast.location_) {
+        console.warn('no location for', ast);
+        return ast.source_;
       }
-      return patternifyAST(ast.source_);
+      const { start, end } = ast.location_;
+      const value = !isNaN(Number(ast.source_)) ? Number(ast.source_) : ast.source_;
+      // the following line expects the shapeshifter append .withMiniLocation
+      // because location_ is only relative to the mini string, but we need it relative to whole code
+      // make sure whitespaces are not part of the highlight:
+      const actual = code?.split('').slice(start.offset, end.offset).join('');
+      const [offsetStart = 0, offsetEnd = 0] = actual
+        ? actual.split(ast.source_).map((p) => p.split('').filter((c) => c === ' ').length)
+        : [];
+      return strudel
+        .pure(value)
+        .withLocation(
+          [start.line, start.column + offsetStart, start.offset + offsetStart],
+          [start.line, end.column - offsetEnd, end.offset - offsetEnd],
+        );
+    }
     case 'stretch':
-      return patternifyAST(ast.source_).slow(ast.arguments_.amount);
+      return patternifyAST(ast.source_, code).slow(patternifyAST(ast.arguments_.amount, code));
     /* case 'scale':
       let [tonic, scale] = Scale.tokenize(ast.arguments_.scale);
       const intervals = Scale.get(scale).intervals;
@@ -137,37 +179,33 @@ export function patternifyAST(ast) {
       }); */
     /* case 'struct':
       // TODO:
-      return silence; */
+      return strudel.silence; */
     default:
       console.warn(`node type "${ast.type_}" not implemented -> returning silence`);
-      return silence;
+      return strudel.silence;
   }
 }
 
 // mini notation only (wraps in "")
 export const mini = (...strings) => {
   const pats = strings.map((str) => {
-    const ast = krill.parse(`"${str}"`);
-    return patternifyAST(ast);
+    const code = `"${str}"`;
+    const ast = krill.parse(code);
+    return patternifyAST(ast, code);
   });
-  return sequence(...pats);
+  return strudel.sequence(...pats);
 };
 
 // includes haskell style (raw krill parsing)
 export const h = (string) => {
   const ast = krill.parse(string);
   // console.log('ast', ast);
-  return patternifyAST(ast);
+  return patternifyAST(ast, string);
 };
 
-// shorthand for mini
-Pattern.prototype.define('mini', mini, { composable: true });
-Pattern.prototype.define('m', mini, { composable: true });
-Pattern.prototype.define('h', h, { composable: true });
-
 export function minify(thing) {
   if (typeof thing === 'string') {
     return mini(thing);
   }
-  return reify(thing);
+  return strudel.reify(thing);
 }

packages/mini/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@strudel.cycles/mini",
-  "version": "0.1.3",
+  "version": "0.5.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {

packages/mini/package.json

@@ -1,11 +1,11 @@
 {
   "name": "@strudel.cycles/mini",
-  "version": "0.1.3",
+  "version": "0.5.0",
   "description": "Mini notation for strudel",
   "main": "index.mjs",
   "type": "module",
   "scripts": {
-    "test": "mocha --colors",
+    "test": "vitest run",
     "build:parser": "peggy -o krill-parser.js --format es ./krill.pegjs"
   },
   "repository": {
@@ -26,9 +26,9 @@
   },
   "homepage": "https://github.com/tidalcycles/strudel#readme",
   "dependencies": {
-    "@strudel.cycles/core": "^0.1.2",
-    "@strudel.cycles/eval": "^0.1.3",
-    "@strudel.cycles/tone": "^0.1.3"
+    "@strudel.cycles/core": "^0.5.0",
+    "@strudel.cycles/eval": "^0.5.0",
+    "@strudel.cycles/tone": "^0.5.0"
   },
   "devDependencies": {
     "peggy": "^2.0.1"

packages/mini/test/mini.test.mjs

@@ -4,50 +4,167 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-import { strict as assert } from 'assert';
 import { mini } from '../mini.mjs';
 import '@strudel.cycles/core/euclid.mjs';
+import { describe, expect, it } from 'vitest';
 
 describe('mini', () => {
-  const minV = (v) => mini(v)._firstCycleValues;
-  const minS = (v) => mini(v)._showFirstCycle;
+  const minV = (v) => mini(v).sortHapsByPart().firstCycleValues;
+  const minS = (v) => mini(v).sortHapsByPart().showFirstCycle;
   it('supports single elements', () => {
-    assert.deepStrictEqual(minV('a'), ['a']);
+    expect(minV('a')).toEqual(['a']);
   });
   it('supports rest', () => {
-    assert.deepStrictEqual(minV('~'), []);
+    expect(minV('~')).toEqual([]);
   });
   it('supports cat', () => {
-    assert.deepStrictEqual(minS('a b'), ['a: 0 - 1/2', 'b: 1/2 - 1']);
-    assert.deepStrictEqual(minS('a b c'), ['a: 0 - 1/3', 'b: 1/3 - 2/3', 'c: 2/3 - 1']);
+    expect(minS('a b')).toEqual(['a: 0 - 1/2', 'b: 1/2 - 1']);
+    expect(minS('a b c')).toEqual(['a: 0 - 1/3', 'b: 1/3 - 2/3', 'c: 2/3 - 1']);
+  });
+  it('supports fast', () => {
+    expect(minS('a*3 b')).toEqual(minS('[a a a] b'));
+  });
+  it('supports patterned fast', () => {
+    expect(minS('[a*<3 5>]*2')).toEqual(minS('[a a a] [a a a a a]'));
+  });
+  it('supports slow', () => {
+    expect(minS('[a a a]/3 b')).toEqual(minS('a b'));
+  });
+  it('supports patterned slow', () => {
+    expect(minS('[a a a a a a a a]/[2 4]')).toEqual(minS('[a a] a'));
+  });
+  it('supports patterned fast', () => {
+    expect(minS('[a*<3 5>]*2')).toEqual(minS('[a a a] [a a a a a]'));
   });
   it('supports slowcat', () => {
-    assert.deepStrictEqual(minV('<a b>'), ['a']);
+    expect(minV('<a b>')).toEqual(['a']);
   });
   it('supports division', () => {
-    assert.deepStrictEqual(minS('a/2'), ['a: 0 - 2']);
-    assert.deepStrictEqual(minS('[c3 d3]/2'), ['c3: 0 - 1']);
+    expect(minS('a/2')).toEqual(['a: 0 - 2']);
+    expect(minS('[c3 d3]/2')).toEqual(['c3: 0 - 1']);
   });
   it('supports multiplication', () => {
-    assert.deepStrictEqual(minS('c3*2'), ['c3: 0 - 1/2', 'c3: 1/2 - 1']);
-    assert.deepStrictEqual(minV('[c3 d3]*2'), ['c3', 'd3', 'c3', 'd3']);
+    expect(minS('c3*2')).toEqual(['c3: 0 - 1/2', 'c3: 1/2 - 1']);
+    expect(minV('[c3 d3]*2')).toEqual(['c3', 'd3', 'c3', 'd3']);
   });
   it('supports brackets', () => {
-    assert.deepStrictEqual(minS('c3 [d3 e3]'), ['c3: 0 - 1/2', 'd3: 1/2 - 3/4', 'e3: 3/4 - 1']);
-    assert.deepStrictEqual(minS('c3 [d3 [e3 f3]]'), ['c3: 0 - 1/2', 'd3: 1/2 - 3/4', 'e3: 3/4 - 7/8', 'f3: 7/8 - 1']);
+    expect(minS('c3 [d3 e3]')).toEqual(['c3: 0 - 1/2', 'd3: 1/2 - 3/4', 'e3: 3/4 - 1']);
+    expect(minS('c3 [d3 [e3 f3]]')).toEqual(['c3: 0 - 1/2', 'd3: 1/2 - 3/4', 'e3: 3/4 - 7/8', 'f3: 7/8 - 1']);
+  });
+  it('supports curly brackets', () => {
+    expect(minS('{a b, c d e}*3')).toEqual(minS('[a b a b a b, c d e c d e]'));
+    expect(minS('{a b, c [d e] f}*3')).toEqual(minS('[a b a b a b, c [d e] f c [d e] f]'));
+    expect(minS('{a b c, d e}*2')).toEqual(minS('[a b c a b c, d e d e d e]'));
+  });
+  it('supports curly brackets with explicit step-per-cycle', () => {
+    expect(minS('{a b, c d e}%3')).toEqual(minS('[a b a, c d e]'));
+    expect(minS('{a b, c d e}%5')).toEqual(minS('[a b a b a, c d e c d]'));
+    expect(minS('{a b, c d e}%6')).toEqual(minS('[a b a b a b, c d e c d e]'));
   });
   it('supports commas', () => {
-    assert.deepStrictEqual(minS('c3,e3,g3'), ['c3: 0 - 1', 'e3: 0 - 1', 'g3: 0 - 1']);
-    assert.deepStrictEqual(minS('[c3,e3,g3] f3'), ['c3: 0 - 1/2', 'e3: 0 - 1/2', 'g3: 0 - 1/2', 'f3: 1/2 - 1']);
+    expect(minS('c3,e3,g3')).toEqual(['c3: 0 - 1', 'e3: 0 - 1', 'g3: 0 - 1']);
+    expect(minS('[c3,e3,g3] f3')).toEqual(['c3: 0 - 1/2', 'e3: 0 - 1/2', 'g3: 0 - 1/2', 'f3: 1/2 - 1']);
   });
   it('supports elongation', () => {
-    assert.deepStrictEqual(minS('a@3 b'), ['a: 0 - 3/4', 'b: 3/4 - 1']);
-    assert.deepStrictEqual(minS('a@2 b@3'), ['a: 0 - 2/5', 'b: 2/5 - 1']);
+    expect(minS('a@3 b')).toEqual(['a: 0 - 3/4', 'b: 3/4 - 1']);
+    expect(minS('a@2 b@3')).toEqual(['a: 0 - 2/5', 'b: 2/5 - 1']);
   });
   it('supports replication', () => {
-    assert.deepStrictEqual(minS('a!3 b'), ['a: 0 - 1/4', 'a: 1/4 - 1/2', 'a: 1/2 - 3/4', 'b: 3/4 - 1']);
+    expect(minS('a!3 b')).toEqual(['a: 0 - 1/4', 'a: 1/4 - 1/2', 'a: 1/2 - 3/4', 'b: 3/4 - 1']);
+    expect(minS('[<a b c>]!3 d')).toEqual(minS('<a b c> <a b c> <a b c> d'));
   });
   it('supports euclidean rhythms', () => {
-    assert.deepStrictEqual(minS('a(3, 8)'), ['a: 0 - 1/8', 'a: 3/8 - 1/2', 'a: 3/4 - 7/8']);
+    expect(minS('a(3, 8)')).toEqual(['a: 0 - 1/8', 'a: 3/8 - 1/2', 'a: 3/4 - 7/8']);
   });
+  it('supports patterning euclidean rhythms', () => {
+    expect(minS('[a(<3 5>, <8 16>)]*2')).toEqual(minS('a(3,8) a(5,16)'));
+  });
+  it("reproduces Toussaint's example euclidean algorithms", () => {
+    const checkEuclid = function (spec, target) {
+      expect(minS(`x(${spec[0]},${spec[1]})`)).toEqual(minS(target));
+    };
+    checkEuclid([1, 2], 'x ~');
+    checkEuclid([1, 3], 'x ~ ~');
+    checkEuclid([1, 4], 'x ~ ~ ~');
+    checkEuclid([4, 12], 'x ~ ~ x ~ ~ x ~ ~ x ~ ~');
+    checkEuclid([2, 5], 'x ~ x ~ ~');
+    // checkEuclid([3, 4], "x ~ x x"); // Toussaint is wrong..
+    checkEuclid([3, 4], 'x x x ~'); // correction
+    checkEuclid([3, 5], 'x ~ x ~ x');
+    checkEuclid([3, 7], 'x ~ x ~ x ~ ~');
+    checkEuclid([3, 8], 'x ~ ~ x ~ ~ x ~');
+    checkEuclid([4, 7], 'x ~ x ~ x ~ x');
+    checkEuclid([4, 9], 'x ~ x ~ x ~ x ~ ~');
+    checkEuclid([4, 11], 'x ~ ~ x ~ ~ x ~ ~ x ~');
+    // checkEuclid([5, 6], "x ~ x x x x"); // Toussaint is wrong..
+    checkEuclid([5, 6], 'x x x x x ~'); // correction
+    checkEuclid([5, 7], 'x ~ x x ~ x x');
+    checkEuclid([5, 8], 'x ~ x x ~ x x ~');
+    checkEuclid([5, 9], 'x ~ x ~ x ~ x ~ x');
+    checkEuclid([5, 11], 'x ~ x ~ x ~ x ~ x ~ ~');
+    checkEuclid([5, 12], 'x ~ ~ x ~ x ~ ~ x ~ x ~');
+    // checkEuclid([5, 16], "x ~ ~ x ~ ~ x ~ ~ x ~ ~ x ~ ~ ~ ~");  // Toussaint is wrong..
+    checkEuclid([5, 16], 'x ~ ~ x ~ ~ x ~ ~ x ~ ~ x ~ ~ ~'); // correction
+    // checkEuclid([7, 8], "x ~ x x x x x x"); // Toussaint is wrong..
+    checkEuclid([7, 8], 'x x x x x x x ~'); // Correction
+    checkEuclid([7, 12], 'x ~ x x ~ x ~ x x ~ x ~');
+    checkEuclid([7, 16], 'x ~ ~ x ~ x ~ x ~ ~ x ~ x ~ x ~');
+    checkEuclid([9, 16], 'x ~ x x ~ x ~ x ~ x x ~ x ~ x ~');
+    checkEuclid([11, 24], 'x ~ ~ x ~ x ~ x ~ x ~ x ~ ~ x ~ x ~ x ~ x ~ x ~');
+    checkEuclid([13, 24], 'x ~ x x ~ x ~ x ~ x ~ x ~ x x ~ x ~ x ~ x ~ x ~');
+  });
+  it('supports the ? operator', () => {
+    expect(
+      mini('a?')
+        .queryArc(0, 20)
+        .map((hap) => hap.whole.begin),
+    ).toEqual(
+      mini('a')
+        .degradeBy(0.5)
+        .queryArc(0, 20)
+        .map((hap) => hap.whole.begin),
+    );
+  });
+  // testing things that involve pseudo-randomness, so there's a probability we could fail by chance.
+  // these next few tests work with the current PRNG, and are intended to succeed with p > 0.99 even if the PRNG changes
+  //   (as long as the PRNG has a relatively-uniform distribution of values)
+  it('supports degradeBy with default of 50%', () => {
+    const haps = mini('a?').queryArc(0, 1000);
+    expect(459 <= haps.length && haps.length <= 541).toBe(true);
+    // 'Number of elements did not fall in 99% confidence interval for binomial with p=0.5',
+  });
+  it('supports degradeBy with an argument', () => {
+    const haps = mini('a?0.8').queryArc(0, 1000);
+    expect(haps.length > 0).toBe(true);
+    // 'Should have had at least one element when degradeBy was set at 0.8');
+    expect(haps.length < 230).toBe(true);
+    // 'Had too many cycles remaining after degradeBy 0.8');
+  });
+  /*it('supports the random choice operator ("|") with nesting', () => {
+    const numCycles = 900;
+    const haps = mini('a | [b | c] | [d | e | f]').queryArc(0, numCycles);
+    // Should have about 1/3 a, 1/6 each of b | c, and 1/9 each of d | e | f.
+    // Evaluating this distribution with a chi-squared test.
+    // Note: this just evaluates the overall distribution, not things like correlation/runs of values
+    const observed = haps.reduce((acc, hap) => {
+      acc[hap.value] = (acc[hap.value] || 0) + 1;
+      return acc;
+    }, {});
+    const expected = {
+      a: numCycles / 3,
+      b: numCycles / 6,
+      c: numCycles / 6,
+      d: numCycles / 9,
+      e: numCycles / 9,
+      f: numCycles / 9,
+    };
+    let chisq = -numCycles;
+    for (let k in expected) {
+      chisq += (observed[k] * observed[k]) / expected[k];
+    }
+    // 15.086 is the chisq for 5 degrees of freedom at 99%, so for 99% of uniformly-distributed
+    //  PRNG, this test should succeed
+    expect(chisq <= 15.086).toBe(true);
+    // assert(chisq <= 15.086, chisq + ' was expected to be less than 15.086 under chi-squared test');
+  });*/
 });

packages/osc/README.md

@@ -35,3 +35,5 @@ s("<bd sd> hh").osc()
 ```
 
 or just [click here](http://localhost:3000/#cygiPGJkIHNkPiBoaCIpLm9zYygp)...
+
+You can read more about [how to use Superdirt with Strudel the Tutorial](https://strudel.tidalcycles.org/learn/outputs#superdirt-api)

packages/osc/osc.mjs

@@ -5,10 +5,34 @@ This program is free software: you can redistribute it and/or modify it under th
 */
 
 import OSC from 'osc-js';
-import { Pattern } from '@strudel.cycles/core';
+import { logger, parseNumeral, Pattern } from '@strudel.cycles/core';
+
+let connection; // Promise<OSC>
+function connect() {
+  if (!connection) {
+    // make sure this runs only once
+    connection = new Promise((resolve, reject) => {
+      const osc = new OSC();
+      osc.open();
+      osc.on('open', () => {
+        const url = osc.options?.plugin?.socket?.url;
+        logger(`[osc] connected${url ? ` to ${url}` : ''}`);
+        resolve(osc);
+      });
+      osc.on('close', () => {
+        connection = undefined; // allows new connection afterwards
+        console.log('[osc] disconnected');
+        reject('OSC connection closed');
+      });
+      osc.on('error', (err) => reject(err));
+    }).catch((err) => {
+      connection = undefined;
+      throw new Error('Could not connect to OSC server. Is it running?');
+    });
+  }
+  return connection;
+}
 
-const comm = new OSC();
-comm.open();
 const latency = 0.1;
 let startedAt = -1;
 
@@ -20,24 +44,25 @@ let startedAt = -1;
  * @memberof Pattern
  * @returns Pattern
  */
-Pattern.prototype.osc = function () {
-  return this._withHap((hap) => {
-    const onTrigger = (time, hap, currentTime, cps) => {
-      const cycle = hap.wholeOrPart().begin.valueOf();
-      const delta = hap.duration.valueOf();
-      // time should be audio time of onset
-      // currentTime should be current time of audio context (slightly before time)
-      if (startedAt < 0) {
-        startedAt = Date.now() - currentTime * 1000;
-      }
-      const controls = Object.assign({}, { cps, cycle, delta }, hap.value);
-      const keyvals = Object.entries(controls).flat();
-      const ts = Math.floor(startedAt + (time + latency) * 1000);
-      const message = new OSC.Message('/dirt/play', ...keyvals);
-      const bundle = new OSC.Bundle([message], ts);
-      bundle.timestamp(ts); // workaround for https://github.com/adzialocha/osc-js/issues/60
-      comm.send(bundle);
-    };
-    return hap.setContext({ ...hap.context, onTrigger });
+Pattern.prototype.osc = async function () {
+  const osc = await connect();
+  return this.onTrigger((time, hap, currentTime, cps = 1) => {
+    const cycle = hap.wholeOrPart().begin.valueOf();
+    const delta = hap.duration.valueOf();
+    // time should be audio time of onset
+    // currentTime should be current time of audio context (slightly before time)
+    if (startedAt < 0) {
+      startedAt = Date.now() - currentTime * 1000;
+    }
+    const controls = Object.assign({}, { cps, cycle, delta }, hap.value);
+    // make sure n and note are numbers
+    controls.n && (controls.n = parseNumeral(controls.n));
+    controls.note && (controls.note = parseNumeral(controls.note));
+    const keyvals = Object.entries(controls).flat();
+    const ts = Math.floor(startedAt + (time + latency) * 1000);
+    const message = new OSC.Message('/dirt/play', ...keyvals);
+    const bundle = new OSC.Bundle([message], ts);
+    bundle.timestamp(ts); // workaround for https://github.com/adzialocha/osc-js/issues/60
+    osc.send(bundle);
   });
 };

packages/osc/package-lock.json

@@ -1,6 +1,6 @@
 {
 	"name": "@strudel.cycles/osc",
-	"version": "0.1.1",
+	"version": "0.4.0",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {

packages/osc/package.json

@@ -1,13 +1,14 @@
 {
   "name": "@strudel.cycles/osc",
-  "version": "0.1.1",
+  "version": "0.4.0",
   "description": "OSC messaging for strudel",
   "main": "osc.mjs",
   "scripts": {
     "test": "echo \"No tests present.\" && exit 0",
     "server": "node server.js",
     "tidal-sniffer": "node tidal-sniffer.js",
-    "client": "npx serve -p 4321"
+    "client": "npx serve -p 4321",
+    "build": "npx pkg server.js --targets node16-macos-x64,node16-win-x64,node16-linux-x64 --out-path bin"
   },
   "repository": {
     "type": "git",
@@ -30,6 +31,9 @@
   },
   "homepage": "https://github.com/tidalcycles/strudel#readme",
   "dependencies": {
-    "osc-js": "^2.3.2"
+    "osc-js": "^2.4.0"
+  },
+  "devDependencies": {
+    "pkg": "^5.7.0"
   }
 }

packages/osc/server.js

@@ -25,8 +25,6 @@ const config = {
   },
 };
 
-
-
 const osc = new OSC({ plugin: new OSC.BridgePlugin(config) });
 
 osc.open(); // start a WebSocket server on port 8080

packages/react/.npmignore

@@ -0,0 +1 @@
+examples

packages/react/README.md

@@ -1,4 +1,43 @@
 # @strudel.cycles/react
 
-This package contains react hooks and components for strudel.
-Example coming soon
+This package contains react hooks and components for strudel. It is used internally by the Strudel REPL.
+
+## Install
+
+```js
+npm i @strudel.cycles/react
+```
+
+## Usage
+
+Here is a minimal example of how to set up a MiniRepl:
+
+```jsx
+import { evalScope, controls } from '@strudel.cycles/core';
+import { MiniRepl } from '@strudel.cycles/react';
+import { prebake } from '../repl/src/prebake.mjs';
+
+evalScope(
+  controls,
+  import('@strudel.cycles/core'),
+  import('@strudel.cycles/tonal'),
+  import('@strudel.cycles/mini'),
+  import('@strudel.cycles/webaudio'),
+  /* probably import other strudel packages */
+);
+
+prebake();
+
+export function Repl({ tune }) {
+  return <MiniRepl tune={tune} hideOutsideView={true} />;
+}
+```
+
+## Development
+
+If you change something in here and want to see the changes in the repl, make sure to run `npm run build` inside this folder!
+
+```js
+npm run dev # dev server
+npm run build # build package
+```

packages/react/dist/style.css

@@ -1 +1 @@
-*,:before,:after{--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: }.sc-h-5{height:1.25rem}.sc-w-5{width:1.25rem}@keyframes sc-pulse{50%{opacity:.5}}.sc-animate-pulse{animation:sc-pulse 2s cubic-bezier(.4,0,.6,1) infinite}.cm-editor{background-color:transparent!important}._container_10e1g_1{overflow:hidden;border-radius:.375rem;--tw-bg-opacity: 1;background-color:rgb(68 76 87 / var(--tw-bg-opacity))}._header_10e1g_5{display:flex;justify-content:space-between;border-top-width:1px;--tw-border-opacity: 1;border-color:rgb(100 116 139 / var(--tw-border-opacity));--tw-bg-opacity: 1;background-color:rgb(51 65 85 / var(--tw-bg-opacity))}._buttons_10e1g_9{display:flex}._button_10e1g_9{display:flex;width:4rem;cursor:pointer;align-items:center;justify-content:center;border-right-width:1px;--tw-border-opacity: 1;border-color:rgb(100 116 139 / var(--tw-border-opacity));--tw-bg-opacity: 1;background-color:rgb(51 65 85 / var(--tw-bg-opacity));padding:.25rem;--tw-text-opacity: 1;color:rgb(255 255 255 / var(--tw-text-opacity))}._button_10e1g_9:hover{--tw-bg-opacity: 1;background-color:rgb(71 85 105 / var(--tw-bg-opacity))}._buttonDisabled_10e1g_17{display:flex;width:4rem;cursor:pointer;cursor:not-allowed;align-items:center;justify-content:center;--tw-bg-opacity: 1;background-color:rgb(71 85 105 / var(--tw-bg-opacity));padding:.25rem;--tw-text-opacity: 1;color:rgb(148 163 184 / var(--tw-text-opacity))}._error_10e1g_21{padding:.25rem;text-align:right;font-size:.875rem;line-height:1.25rem;--tw-text-opacity: 1;color:rgb(254 202 202 / var(--tw-text-opacity))}._body_10e1g_25{position:relative;overflow:auto}
+.cm-editor{background-color:transparent!important;height:100%;z-index:11;font-size:18px}.cm-theme-light{width:100%}.cm-line>*{background:#00000095}*,:before,:after{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: }::backdrop{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: }.sc-h-5{height:1.25rem}.sc-w-5{width:1.25rem}@keyframes sc-pulse{50%{opacity:.5}}.sc-animate-pulse{animation:sc-pulse 2s cubic-bezier(.4,0,.6,1) infinite}.sc-rounded-md{border-radius:.375rem}.sc-bg-gray-800{--tw-bg-opacity: 1;background-color:rgb(31 41 55 / var(--tw-bg-opacity))}.sc-p-2{padding:.5rem}._container_3i85k_1{overflow:hidden;border-radius:.375rem;--tw-bg-opacity: 1;background-color:rgb(34 34 34 / var(--tw-bg-opacity))}._header_3i85k_5{display:flex;justify-content:space-between;border-top-width:1px;--tw-border-opacity: 1;border-color:rgb(100 116 139 / var(--tw-border-opacity));--tw-bg-opacity: 1;background-color:rgb(51 65 85 / var(--tw-bg-opacity))}._buttons_3i85k_9{display:flex}._button_3i85k_9{display:flex;width:4rem;cursor:pointer;align-items:center;justify-content:center;border-right-width:1px;--tw-border-opacity: 1;border-color:rgb(100 116 139 / var(--tw-border-opacity));--tw-bg-opacity: 1;background-color:rgb(51 65 85 / var(--tw-bg-opacity));padding:.25rem;--tw-text-opacity: 1;color:rgb(255 255 255 / var(--tw-text-opacity))}._button_3i85k_9:hover{--tw-bg-opacity: 1;background-color:rgb(71 85 105 / var(--tw-bg-opacity))}._buttonDisabled_3i85k_17{display:flex;width:4rem;cursor:pointer;cursor:not-allowed;align-items:center;justify-content:center;--tw-bg-opacity: 1;background-color:rgb(71 85 105 / var(--tw-bg-opacity));padding:.25rem;--tw-text-opacity: 1;color:rgb(148 163 184 / var(--tw-text-opacity))}._error_3i85k_21{padding:.25rem;text-align:right;font-size:.875rem;line-height:1.25rem;--tw-text-opacity: 1;color:rgb(254 202 202 / var(--tw-text-opacity))}._body_3i85k_25{position:relative;overflow:auto}

packages/react/examples/nano-repl/.gitignore

@@ -8,7 +8,7 @@ pnpm-debug.log*
 lerna-debug.log*
 
 node_modules
-dist
+!dist
 dist-ssr
 *.local
 
@@ -22,6 +22,3 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
-
-oldtunes.mjs
-public/samples/EMU World