Merge branch 'main' into ziglets

fix: reset global fx on pattern change

.eslintignore

@@ -0,0 +1,24 @@
+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
+**/*.json
+**/dev-dist
+**/dist
+/src-tauri/target/**/*
+reverbGen.mjs
+hydra.mjs
+jsdoc-synonyms.js

.eslintrc.json

@@ -0,0 +1,17 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true
+  },
+  "extends": ["eslint:recommended"],
+  "overrides": [],
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "plugins": ["import"],
+  "rules": {
+    "no-unused-vars": ["warn", { "destructuredArrayIgnorePattern": ".", "ignoreRestSiblings": false }],
+    "import/no-extraneous-dependencies": ["error", {"devDependencies": true}]
+  }
+}

.github/workflows/deploy.yml

@@ -0,0 +1,49 @@
+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@v4
+      - uses: pnpm/action-setup@v2
+        with:
+          version: 8.11.0
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 20
+          cache: "pnpm"
+      - name: Install Dependencies
+        run: pnpm install
+
+      - name: Build
+        run: pnpm 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/tauri.yml

@@ -0,0 +1,62 @@
+name: Tauri Builder
+on:
+  push:
+    tags:
+      - "v*"
+  workflow_dispatch:
+
+jobs:
+  release:
+    strategy:
+      fail-fast: false
+      matrix:
+        platform: [macos-latest, ubuntu-latest, windows-latest]
+        include:
+          - os: ubuntu-latest
+            rust_target: x86_64-unknown-linux-gnu
+          - os: macos-latest
+            rust_target: x86_64-apple-darwin
+          - os: macos-latest
+            rust_target: aarch64-apple-darwin
+          - os: windows-latest
+            rust_target: x86_64-pc-windows-msvc
+    runs-on: ${{ matrix.platform }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - uses: pnpm/action-setup@v2
+        with:
+          version: 8.6.2
+
+      - name: Node.js setup
+        uses: actions/setup-node@v3
+        with:
+          node-version: latest
+          # node-version-file: '.nvmrc'
+
+      - name: Install Rust (Stable)
+        run:
+          curl https://sh.rustup.rs -sSf | sh -s -- -y
+
+      - name: Install dependencies (ubuntu only)
+        if: matrix.platform == 'ubuntu-latest'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libgtk-3-dev webkit2gtk-4.0 libappindicator3-dev librsvg2-dev patchelf libasound2-dev
+
+      - name: Install app dependencies from lockfile and build web
+        run: pnpm install
+
+      - name: Build the app
+        uses: tauri-apps/tauri-action@v0
+
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          # tauri-action replaces \_\_VERSION\_\_ with the app version
+          tagName: ${{ github.ref_name }}
+          releaseName: "Strudel v__VERSION__"
+          releaseBody: |
+            See the assets to download this version and install.
+          releaseDraft: true
+          prerelease: false

.github/workflows/test.yml

@@ -7,13 +7,18 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [16, 17]
+        node-version: [20]
 
     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@v4
+      - uses: pnpm/action-setup@v2
+        with:
+          version: 8.11.0
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'pnpm'
+      - run: pnpm install
+      - run: pnpm run format-check
+      - run: pnpm run lint
+      - run: pnpm test

.gitignore

@@ -34,4 +34,96 @@ repl_old
 tutorial.rendered.mdx
 doc.json
 talk/public/EmuSP12
-talk/public/samples
+talk/public/samples
+server/samples/old
+repl/stats.html
+coverage
+public/icons/apple-splash-*
+dev-dist
+Dirt-Samples
+tidal-drum-machines
+webaudiofontdata
+src-tauri/target
+
+# BEGIN JetBrains -> END JetBrains
+
+# for JetBrains IDE users, e.g. WebStorm. Source: https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+# END JetBrains -> BEGIN JetBrains

.prettierignore

@@ -0,0 +1,14 @@
+*.md
+*.json
+*.yml
+*.
+**/out
+**/dist
+packages/mini/krill-parser.js
+packages/xen/tunejs.js
+paper
+pnpm-lock.yaml
+pnpm-workspace.yaml
+**/dev-dist
+superdough-wasm
+website/.astro

.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,
+  "bracketSameLine": 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.cc/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.cc/workshop/getting-started/),
+you can edit each file directly on github via the "Edit this page" link located in the right sidebar.
 
 ## Propose a Feature
 
@@ -52,40 +49,43 @@ 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
 
 There are still many tests that have not been written yet! Reading and writing tests is a great opportunity to get familiar with the codebase.
-You can find the tests in each package in the `test` folder. To run all tests, run `npm test` from the root folder.
+You can find the tests in each package in the `test` folder. To run all tests, run `pnpm test` from the root folder.
 
 ## Project Setup
 
 To get the project up and running for development, make sure you have installed:
 
-- git
-- node, preferably v16
+- [git](https://git-scm.com/)
+- [node](https://nodejs.org/en/) >= 18
+- [pnpm](https://pnpm.io/) (`curl -fsSL https://get.pnpm.io/install.sh | env PNPM_VERSION=8.11.0 sh -`)
 
 then, do the following:
 
 ```sh
 git clone https://github.com/tidalcycles/strudel.git && cd strudel
-npm i # install at root to symlink packages
-npx lerna bootstrap # install all dependencies in packages
-cd repl && npm i # install repl dependencies
-npm run start # start repl
+pnpm i # install at root to symlink packages
+pnpm 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
 
 To make sure the code changes only where it should, we are using prettier to unify the code style.
+
+- You can format all files at once by running `pnpm codeformat` from the project root
+- Run `pnpm format-check` from the project root to check if all files are well formatted
+
 If you use VSCode, you can
 
 1. install [the prettier extension](https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode)
@@ -93,19 +93,55 @@ If you use VSCode, you can
 3. Choose "Configure Default Formatter..."
 4. Select prettier
 
+## ESLint
+
+To prevent unwanted runtime errors, this project uses [eslint](https://eslint.org/).
+
+- You can check for lint errors by running `pnpm lint`
+
+There are also eslint extensions / plugins for most editors.
+
+## Running Tests
+
+- Run all tests with `pnpm test`
+- Run all tests with UI using `pnpm test-ui`
+
+## Running all CI Checks
+
+When opening a PR, the CI runner will automatically check the code style and eslint, as well as run all tests.
+You can run the same check with `pnpm check`
+
 ## Package Workflow
 
 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, 
-which allows developing multiple packages at the same time
+When you run `pnpm i` on the root folder, [pnpm workspaces](https://pnpm.io/workspaces) will install all dependencies of all subpackages. This will allow any js file to import `@strudel/<package-name>` to get the local version,
+allowing to develop multiple packages at the same time.
 
 ## Package Publishing
 
 To publish all packages that have been changed since the last release, run:
 
 ```sh
-npx lerna publish
+npm login
+
+# this will increment all the versions in package.json files of non private packages to selected versions
+npx lerna version --no-private
+
+# publish all packages inside /packages using pnpm! don't use lerna to publish!!
+pnpm --filter "./packages/**" publish --dry-run
+
+# the last command was only a dry-run, make sure everything looks ok, if yes, run the same command without flag
+```
+
+To manually publish a single package, increase the version in the `package.json`, then run `pnpm publish`.
+Important: Always publish with `pnpm`, as `npm` does not support overriding main files in `publishConfig`, which is done in all the packages.
+
+### New Packages
+
+To add a new package, you have to publish it manually the first time, using:
+
+```sh
+cd packages/<package-name> && pnpm publish --access public
 ```
 
 ## Have Fun

README.md

@@ -2,19 +2,21 @@
 
 [![Strudel test status](https://github.com/tidalcycles/strudel/actions/workflows/test.yml/badge.svg)](https://github.com/tidalcycles/strudel/actions)
 
-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.
+An experiment in making a [Tidal](https://github.com/tidalcycles/tidal/) using web technologies. This software is a bit more stable now, but please continue to tread carefully.
 
-- Try it here: <https://strudel.tidalcycles.org/>
-- Tutorial: <https://strudel.tidalcycles.org/tutorial/>
+- Try it here: <https://strudel.cc>
+- Docs: <https://strudel.cc/learn>
 - Technical Blog Post: <https://loophole-letters.vercel.app/strudel>
+- 1 Year of Strudel Blog Post: <https://loophole-letters.vercel.app/strudel1year>
+- 2 Years of Strudel Blog Post: <https://strudel.cc/blog/#year-2>
 
 ## Running Locally
 
 After cloning the project, you can run the REPL locally:
 
 ```bash
-npm run setup
-npm run repl
+pnpm run setup
+pnpm run repl
 ```
 
 ## Using Strudel In Your Project
@@ -23,13 +25,12 @@ There are multiple npm packages you can use to use strudel, or only parts of it,
 
 - [`core`](./packages/core/): tidal pattern engine
 - [`mini`](./packages/mini): mini notation parser + core binding
-- [`eval`](./packages/eval): user code evaluator. syntax sugar + highlighting
-- [`tone`](./packages/tone): bindings for Tone.js instruments and effects
+- [`transpiler`](./packages/transpiler): user code transpiler
+- [`webaudio`](./packages/webaudio): webaudio output
 - [`osc`](./packages/osc): bindings to communicate via OSC
 - [`midi`](./packages/midi): webmidi bindings
 - [`serial`](./packages/serial): webserial bindings
 - [`tonal`](./packages/tonal): tonal functions
-- [`xen`](./packages/xen): microtonal / xenharmonic functions
 - ... [and there are more](./packages/)
 
 Click on the package names to find out more about each one.
@@ -38,6 +39,12 @@ 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>

examples/README.md

@@ -0,0 +1,3 @@
+# examples
+
+This folder contains usage examples for different scenarios.

examples/buildless/README.md

@@ -0,0 +1,5 @@
+# buildless examples
+
+These examples show you how strudel can be used in a regular html file, without the need for a build tool.
+
+Most examples are using [skypack](https://www.skypack.dev/)

examples/buildless/basic.html

@@ -1,13 +1,13 @@
 <input
   type="text"
   id="text"
-  value="cat('a', 'b')"
+  value="seq('a', ['b', 'c'])"
   style="width: 100%; font-size: 2em; outline: none; margin-bottom: 10px"
   spellcheck="false"
 />
 <div id="output"></div>
 <script type="module">
-  const strudel = await import('https://cdn.skypack.dev/@strudel.cycles/core@0.0.2');
+  const strudel = await import('https://cdn.skypack.dev/@strudel/core@0.6.8');
   Object.assign(window, strudel); // assign all strudel functions to global scope to use with eval
   const input = document.getElementById('text');
   const getEvents = () => {

examples/buildless/canvas.html

@@ -2,13 +2,13 @@
   <input
     type="text"
     id="text"
-    value="cat('orange', 'indigo')"
+    value="seq('tomato', 'indigo', ['white', 'steelblue']).fast(4)"
     style="width: 100%; font-size: 2em; background: black; color: white; outline: none; position: absolute; top: 0"
     spellcheck="false"
   />
   <canvas id="canvas"></canvas>
   <script type="module">
-    const strudel = await import('https://cdn.skypack.dev/@strudel.cycles/core@0.0.2');
+    const strudel = await import('https://cdn.skypack.dev/@strudel/core@0.6.8');
     // this adds all strudel functions to the global scope, to be used by eval
     Object.assign(window, strudel);
     // setup elements

examples/buildless/headless-simple.html

@@ -0,0 +1,10 @@
+<!doctype html>
+<button id="play">play</button>
+<button id="stop">stop</button>
+<script type="module">
+  import { initStrudel } from 'https://cdn.skypack.dev/@strudel/web@0.8.2';
+
+  initStrudel();
+  document.getElementById('play').addEventListener('click', () => evaluate('note("c a f e").jux(rev)'));
+  document.getElementById('play').addEventListener('stop', () => hush());
+</script>

examples/buildless/headless-with-samples.html

@@ -0,0 +1,16 @@
+<!doctype html>
+<button id="a">A</button>
+<button id="b">B</button>
+<button id="c">C</button>
+<button id="stop">stop</button>
+<script type="module">
+  import { initStrudel } from 'https://cdn.skypack.dev/@strudel/web@0.8.2';
+  initStrudel({
+    prebake: () => samples('github:tidalcycles/dirt-samples'),
+  });
+  const click = (id, action) => document.getElementById(id).addEventListener('click', action);
+  click('a', () => evaluate(`s('bd,jvbass(3,8)').jux(rev)`));
+  click('b', () => s('bd*2,hh(3,4),jvbass(5,8,1)').jux(rev).play());
+  click('c', () => s('bd*2,hh(3,4),jvbass:[0 4](5,8,1)').jux(rev).stack(s('~ sd')).play());
+  click('stop', () => hush());
+</script>

examples/buildless/minimal-repl.html

@@ -0,0 +1,89 @@
+<!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; grid-template-rows: 32px auto">
+      <button id="start" style="width: 100vw; height: 32px">evaluate</button>
+      <textarea
+        id="text"
+        style="font-size: 2em; border: 0; color: white; background: transparent; outline: none; padding: 20px"
+        spellcheck="false"
+      ></textarea>
+    </div>
+    <div id="output"></div>
+    <script type="module">
+      import { controls, repl, evalScope } from 'https://cdn.skypack.dev/@strudel/core@0.11.0';
+      import { mini } from 'https://cdn.skypack.dev/@strudel/mini@0.11.0';
+      import { transpiler } from 'https://cdn.skypack.dev/@strudel/transpiler@0.11.0';
+      import {
+        getAudioContext,
+        webaudioOutput,
+        initAudioOnFirstClick,
+        registerSynthSounds,
+      } from 'https://cdn.skypack.dev/@strudel/webaudio@0.11.0';
+
+      const ctx = getAudioContext();
+      const input = document.getElementById('text');
+      input.innerHTML = getTune();
+
+      const loadModules = evalScope(
+        controls,
+        import('https://cdn.skypack.dev/@strudel/core@0.11.0'),
+        import('https://cdn.skypack.dev/@strudel/mini@0.11.0'),
+        import('https://cdn.skypack.dev/@strudel/tonal@0.11.0'),
+        import('https://cdn.skypack.dev/@strudel/webaudio@0.11.0'),
+      );
+
+      const initAudio = Promise.all([initAudioOnFirstClick(), registerSynthSounds()]);
+
+      const { evaluate } = repl({
+        defaultOutput: webaudioOutput,
+        getTime: () => ctx.currentTime,
+        transpiler,
+      });
+      document.getElementById('start').addEventListener('click', async () => {
+        await loadModules;
+        await initAudio;
+        evaluate(input.value);
+      });
+
+      function getTune() {
+        return `samples('github:tidalcycles/dirt-samples')
+
+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>

examples/buildless/web-component-iframe.html

@@ -0,0 +1,22 @@
+<script src="https://unpkg.com/@strudel/embed@0.11.0"></script>
+<!-- <script src="./embed.js"></script> -->
+<strudel-repl>
+  <!--
+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>

examples/buildless/web-component-no-iframe.html

@@ -0,0 +1,31 @@
+<script src="https://unpkg.com/@strudel/repl@1.0.2"></script>
+<strudel-editor>
+  <!--
+// @date 23-08-15
+// "golf rolf" @by froos @license CC BY-NC-SA 4.0
+
+setcps(1)
+stack(
+  s("bd*2, ~ rim*<1!3 2>, hh*4").bank('RolandTR909')
+  .off(-1/8, set(speed("1.5").gain(.25)))
+  .mask("<0!16 1!64>")
+  ,
+  note("g1(3,8)")
+  .s("gm_synth_bass_2:<0 2>")
+  .delay(".8:.25:.25")
+  .clip("<.5!16 2!32>")
+  .off(1/8, add(note("12?0.7")))
+  .lpf(sine.range(500,2000).slow(32)).lpq(8)
+  .add(note("0,.05"))
+  .mask("<0!8 1!32>")
+  ,
+  n("<0 1 2 3 4>*8").scale('G4 minor')
+  .s("gm_lead_6_voice")
+  .clip(sine.range(.2,.8).slow(8))
+  .jux(rev)
+  .room(2)
+  .sometimes(add(note("12")))
+  .lpf(perlin.range(200,20000).slow(4))
+).reset("<x@15 x(5,8)>")
+-->
+</strudel-editor>

examples/buildless/web.html

@@ -0,0 +1,8 @@
+<script src="https://unpkg.com/@strudel/web@1.0.3"></script>
+<button id="play">PLAY</button>
+<script>
+  initStrudel({
+    prebake: () => samples('github:tidalcycles/dirt-samples'),
+  });
+  document.getElementById('play').addEventListener('click', () => s('bd sd').play());
+</script>

examples/codemirror-repl/README.md

@@ -0,0 +1,8 @@
+# codemirror-repl example
+
+This folder demonstrates how to set up a full strudel repl with the `@strudel/codemirror` package. Run it using:
+
+```sh
+pnpm i
+pnpm dev
+```

examples/codemirror-repl/index.html

@@ -0,0 +1,22 @@
+<!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>
+    <main>
+      <nav>
+        <button id="play">eval</button>
+        <button id="stop">stop</button>
+      </nav>
+      <div class="container">
+        <div id="editor"></div>
+        <div id="output"></div>
+      </div>
+      <canvas id="roll"></canvas>
+    </main>
+    <script type="module" src="./main.js"></script>
+  </body>
+</html>

examples/codemirror-repl/main.js

@@ -0,0 +1,39 @@
+import { StrudelMirror } from '@strudel/codemirror';
+import { funk42 } from './tunes';
+import { drawPianoroll, evalScope, controls } from '@strudel/core';
+import './style.css';
+import { initAudioOnFirstClick } from '@strudel/webaudio';
+import { transpiler } from '@strudel/transpiler';
+import { getAudioContext, webaudioOutput, registerSynthSounds } from '@strudel/webaudio';
+import { registerSoundfonts } from '@strudel/soundfonts';
+
+// init canvas
+const canvas = document.getElementById('roll');
+canvas.width = canvas.width * 2;
+canvas.height = canvas.height * 2;
+const drawContext = canvas.getContext('2d');
+const drawTime = [-2, 2]; // time window of drawn haps
+
+const editor = new StrudelMirror({
+  defaultOutput: webaudioOutput,
+  getTime: () => getAudioContext().currentTime,
+  transpiler,
+  root: document.getElementById('editor'),
+  initialCode: funk42,
+  drawTime,
+  onDraw: (haps, time) => drawPianoroll({ haps, time, ctx: drawContext, drawTime, fold: 0 }),
+  prebake: async () => {
+    initAudioOnFirstClick(); // needed to make the browser happy (don't await this here..)
+    const loadModules = evalScope(
+      controls,
+      import('@strudel/core'),
+      import('@strudel/mini'),
+      import('@strudel/tonal'),
+      import('@strudel/webaudio'),
+    );
+    await Promise.all([loadModules, registerSynthSounds(), registerSoundfonts()]);
+  },
+});
+
+document.getElementById('play').addEventListener('click', () => editor.evaluate());
+document.getElementById('stop').addEventListener('click', () => editor.stop());

examples/codemirror-repl/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "vite-vanilla-repl-cm6",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "devDependencies": {
+    "vite": "^5.0.10"
+  },
+  "dependencies": {
+    "@strudel/codemirror": "workspace:*",
+    "@strudel/core": "workspace:*",
+    "@strudel/mini": "workspace:*",
+    "@strudel/soundfonts": "workspace:*",
+    "@strudel/tonal": "workspace:*",
+    "@strudel/transpiler": "workspace:*",
+    "@strudel/webaudio": "workspace:*"
+  }
+}

examples/codemirror-repl/style.css

@@ -0,0 +1,31 @@
+body,
+html {
+  margin: 0;
+  height: 100%;
+  background: #282c34;
+}
+
+main {
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+}
+
+.container {
+  flex-grow: 1;
+  max-height: 100%;
+  position: relative;
+  overflow: auto;
+}
+
+#editor {
+  overflow: auto;
+}
+
+.cm-editor {
+  height: 100%;
+}
+
+#roll {
+  height: 300px;
+}

examples/codemirror-repl/tunes.mjs

@@ -0,0 +1,112 @@
+export const bumpStreet = `// froos - "22 bump street", licensed with CC BY-NC-SA 4.0
+samples('github:felixroos/samples')
+samples('https://strudel.cc/tidal-drum-machines.json', 'github:ritchse/tidal-drum-machines/main/machines/')
+
+"<[0,<6 7 9>,13,<17 20 22 26>]!2>/2"
+  // make it 22 edo
+  .fmap(v => Math.pow(2,v/22))
+  // mess with the base frequency
+  .mul("<300 [300@3 200]>/8").freq()
+  .layer(
+    // chords
+    x=>x.div(freq(2)).s("flute").euclidLegato("<3 2>",8)
+      .shape(.4).lpf(sine.range(800,4000).slow(8)),
+    // adlibs
+    x=>x.arp("{0 3 2 [1 3]}%1.5")
+      .s('xylo').mul(freq(2))
+      .delay(.5).delayfeedback(.4).juxBy(.5, rev)
+      .hpf(sine.range(200,3000).slow(8)),
+    // bass
+    x=>x.arp("[0 [2 1?]](5,8)").s('sawtooth').div(freq(4))
+      .lpf(sine.range(400,2000).slow(8)).lpq(8).shape(.4)
+      .off(1/8, x=>x.mul(freq(2)).degradeBy(.5)).gain(.3)
+  ).clip(1).release(.2)
+.stack(
+  // drums
+  s("bd sd:<2 1>, [~ hh]*2, [~ rim]").bank('RolandTR909')
+  .off(1/8, x=>x.speed(2).gain(.4)).sometimes(ply(2)).gain(.8)
+  .mask("<0@4 1@12>/4")
+  .reset("<x@15 [x(3,8) x*[4 8]]>")
+  // wait for it...
+).fast(2/3)
+  //.crush(6) // remove "//" if you dare`;
+
+export const trafficFlam = `// froos - "traffic flam", licensed with CC BY-NC-SA 4.0
+
+samples('github:felixroos/samples')
+samples('https://strudel.cc/tidal-drum-machines.json', 'github:ritchse/tidal-drum-machines/main/machines/')
+
+addVoicings('hip', {
+  m11: ['2M 3m 4P 7m'],
+  '^7#11': ['3M 4A 5P 7M'],
+}, ['C4', 'C6'])
+
+stack(
+  stack(
+    "<Bbm11 A^7#11>/2".voicings('hip').note()
+    .s("gm_epiano1:2")
+    .arp("[<[0 1 2 3] [3 2 1 0]> ~@5]/2")
+    .release(2).late(.25).lpf(2000),
+    "<Bb1 A1>/2".note().s('gm_acoustic_bass'),
+    n("<0 2 3>(3,8)".off(1/8, add(4)))
+    .scale("<Bb4:minor A4:lydian>/2")
+    .s('gm_electric_guitar_jazz')
+    .decay(sine.range(.05, .2).slow(32)).sustain(0)
+    .delay(.5).lpf(sine.range(100,5000).slow(64))
+    .gain(.7).room(.5).pan(sine.range(0,1).slow(11))
+  ).add(perlin.range(0,.25).note()),
+  stack(
+    s("bd:1(3,8) rim").bank('RolandTR707').slow(2).room("<0 <.1 .6>>")
+    .when("<0@7 1>",x=>x.echoWith(3, .0625, (x,i) => x.speed(1+i*.24))),
+    s("rim*4").end(.05).bank('RolandTR808').speed(.8).room(.2)
+  )
+)
+  .late("[0 .05]*2").late(12)
+
+`;
+
+export const funk42 = `// froos - how to funk in 42 lines of code
+// adapted from "how to funk in two minutes" by marc rebillet https://www.youtube.com/watch?v=3vBwRfQbXkg
+// thanks to peach for the transcription: https://www.youtube.com/watch?v=8eiPXvIgda4
+
+samples('github:felixroos/samples')
+samples('https://strudel.cc/tidal-drum-machines.json', 'github:ritchse/tidal-drum-machines/main/machines/')
+
+setcps(.5)
+
+let drums = stack(
+  s("bd*2, ~ sd").bank('RolandTR707').room("0 .1"),
+  s("hh*4").begin(.2).release(.02).end(.25).release(.02)
+  .gain(.3).bank('RolandTR707').late(.02).room(.5),
+  //s("shaker_small").struct("[x x*2]*2").speed(".8,.9").release(.02)
+).fast(2)
+
+let wurli = note(\`<
+[[a2,g3,[b3 c4],e4] ~ [g3,c4,e4](3,8)@4 ~@2]!3 
+[[e2,e3,a3,b3,e4]@3 [e2,e3,ab3,b3,e4]@5]>\`)
+  .s("gm_epiano1:5").decay(.2).sustain("<[1 0@7]!3 1>")
+  .gain("<[.8@2 .4@14]!3 .7>").room(.3)
+
+let organ = note("<[~@3 [a3,d4,f#4]@2 [[a3,c4,e4]@2 ~] ~@2]!3 ~>".add(12))
+    .s("gm_percussive_organ:2").gain(.6).lpf(1800).pan(.2).room(.3);
+
+let clav = note(\`<
+[~@3 a2 [g3,[b3 c4],e4]@2 ~ a2 [g3,b3,e4] ~@2 [g3,c4,e4] ~@4]!3
+[~@3 e3 [[a3 b3],c3,e3]@2 ~ e2 [e3,a3]@3 [b3,e3] ~@2 [b3,e3]@2]>\`)
+  .s("gm_clavinet:1").decay("<.25!3 [.25 .4]>").sustain(0)
+  .gain(.7).pan(.8).room(.2);
+
+let bass = note(\`<
+[a1 [~ [g2 a2]] [g1 g#1] [a1 [g2 a2]]] 
+[a1 [~ [g2 a2]] [e3 d3] [c3 [g3 a3]]] 
+[a1 [~ [g2 a2]] [g1 g#1] [a1 [g2 a2]]] 
+[e2@6 e1@5 e1 [[d2 e3] g1]@4]
+>\`).s("gm_electric_bass_pick:1").release(.1)
+
+stack(
+  drums
+  ,wurli
+  ,organ
+  ,clav
+  ,bass
+)`;

examples/headless-repl/.gitignore

@@ -8,11 +8,10 @@ pnpm-debug.log*
 lerna-debug.log*
 
 node_modules
+dist
 dist-ssr
 *.local
 
-!dist
-
 # Editor directories and files
 .vscode/*
 !.vscode/extensions.json

examples/headless-repl/README.md

@@ -0,0 +1,13 @@
+# headless-repl demo
+
+This demo shows how to use strudel in "headless mode".
+Buttons A / B / C will switch between different patterns.
+It showcases the usage of the `@strudel/web` package, using [vite](https://vitejs.dev/) as the dev server.
+
+## Running
+
+```sh
+pnpm i && cd examples/headless-repl
+pnpm dev
+# open http://localhost:5173/
+```

examples/headless-repl/index.html

@@ -0,0 +1,28 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="https://strudel.cc/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>@strudel/web REPL Example</title>
+  </head>
+  <body>
+    <div id="app"></div>
+    <button id="a">A</button>
+    <button id="b">B</button>
+    <button id="c">C</button>
+    <button id="stop">stop</button>
+    <script type="module">
+      import { initStrudel } from '@strudel/web';
+      initStrudel({
+        prebake: () => samples('github:tidalcycles/dirt-samples'),
+      });
+
+      const click = (id, action) => document.getElementById(id).addEventListener('click', action);
+      click('a', () => evaluate(`s('bd,jvbass(3,8)').jux(rev)`));
+      click('b', () => s('bd*2,hh(3,4),jvbass(5,8,1)').jux(rev).play());
+      click('c', () => s('bd*2,hh(3,4),jvbass:[0 4](5,8,1)').jux(rev).stack(s('~ sd')).play());
+      click('stop', () => hush());
+    </script>
+  </body>
+</html>

examples/headless-repl/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "repl-example",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "license": "AGPL-3.0-or-later",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "devDependencies": {
+    "vite": "^5.0.10"
+  },
+  "dependencies": {
+    "@strudel/web": "workspace:*"
+  }
+}

examples/minimal-repl/.gitignore

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

examples/minimal-repl/README.md

@@ -0,0 +1,10 @@
+# minimal repl
+
+This folder demonstrates how to set up a minimal strudel repl using vite and vanilla JS. Run it using:
+
+```sh
+npm i
+npm run dev
+```
+
+If you're looking for a more feature rich alternative, have a look at the [../codemirror-repl](codemirror-repl example)

examples/minimal-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>

examples/minimal-repl/main.js

@@ -0,0 +1,28 @@
+import { controls, repl, evalScope } from '@strudel/core';
+import { getAudioContext, webaudioOutput, initAudioOnFirstClick } from '@strudel/webaudio';
+import { transpiler } from '@strudel/transpiler';
+import tune from './tune.mjs';
+
+const ctx = getAudioContext();
+const input = document.getElementById('text');
+input.innerHTML = tune;
+initAudioOnFirstClick();
+
+evalScope(
+  controls,
+  import('@strudel/core'),
+  import('@strudel/mini'),
+  import('@strudel/webaudio'),
+  import('@strudel/tonal'),
+);
+
+const { evaluate } = repl({
+  defaultOutput: webaudioOutput,
+  getTime: () => ctx.currentTime,
+  transpiler,
+});
+document.getElementById('start').addEventListener('click', () => {
+  ctx.resume();
+  console.log('eval', input.value);
+  evaluate(input.value);
+});

examples/minimal-repl/package.json

@@ -0,0 +1,22 @@
+{
+  "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": "^5.0.10"
+  },
+  "dependencies": {
+    "@strudel/core": "workspace:*",
+    "@strudel/mini": "workspace:*",
+    "@strudel/transpiler": "workspace:*",
+    "@strudel/webaudio": "workspace:*",
+    "@strudel/tonal": "workspace:*"
+  }
+}

examples/minimal-repl/tune.mjs

@@ -0,0 +1,31 @@
+export default `samples('github:tidalcycles/dirt-samples')
+
+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)>")`;

examples/superdough/.gitignore

@@ -22,5 +22,3 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
-
-oldtunes.mjs

examples/superdough/README.md

@@ -0,0 +1,11 @@
+# superdough demo
+
+This demo shows how to use [superdough](https://www.npmjs.com/package/superdough) with [vite](https://vitejs.dev/).
+
+## Running
+
+```sh
+pnpm i && cd examples/headless-repl
+pnpm dev
+# open http://localhost:5173/
+```

examples/superdough/index.html

@@ -0,0 +1,38 @@
+<!doctype html>
+<html>
+  <head>
+    <title>Superdough Example</title>
+    <meta charset="UTF-8" />
+  </head>
+
+  <body>
+    <button id="play">PLAAAAAAAY</button>
+    <script type="module">
+      import { superdough, samples, initAudioOnFirstClick, registerSynthSounds } from 'superdough';
+
+      const init = Promise.all([
+        initAudioOnFirstClick(),
+        samples('github:tidalcycles/dirt-samples'),
+        registerSynthSounds(),
+      ]);
+
+      const loop = (t = 0) => {
+        // superdough(value, time, duration)
+        superdough({ s: 'bd', delay: 0.5 }, t);
+        superdough({ note: 'g1', s: 'sawtooth', cutoff: 600, resonance: 8 }, t, 0.125);
+        superdough({ note: 'g2', s: 'sawtooth', cutoff: 600, resonance: 8 }, t + 0.25, 0.125);
+        superdough({ s: 'hh' }, t + 0.25);
+        superdough({ s: 'sd', room: 0.5 }, t + 0.5);
+        superdough({ s: 'hh' }, t + 0.75);
+      };
+
+      document.getElementById('play').addEventListener('click', async () => {
+        await init;
+        let t = 0.1;
+        while (t < 16) {
+          loop(t++);
+        }
+      });
+    </script>
+  </body>
+</html>

examples/superdough/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "superdough-example",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "superdough": "workspace:*"
+  },
+  "devDependencies": {
+    "vite": "^5.0.10"
+  }
+}

index.mjs

@@ -0,0 +1,15 @@
+// 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/desktopbridge/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/transpiler/index.mjs';
+export * from './packages/webaudio/index.mjs';
+export * from './packages/xen/index.mjs';

jsdoc/jsdoc-synonyms.js

@@ -1,12 +1,17 @@
 /*
-postcss.config.js - <short description TODO>
-Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/postcss.config.js>
+jsdoc-synonyms.js - Add support for @synonym tag
+Copyright (C) 2023 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/midi/midi.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/>.
 */
 
-module.exports = {
-  plugins: {
-    tailwindcss: {},
-    autoprefixer: {},
-  },
+function defineTags(dictionary) {
+  dictionary.defineTag('synonyms', {
+    mustHaveValue: true,
+    onTagged: function (doclet, tag) {
+      doclet.synonyms_text = tag.value;
+      doclet.synonyms = doclet.synonyms_text.split(/[ ,]+/);
+    },
+  });
 }
+
+module.exports = { defineTags: defineTags };

jsdoc/jsdoc.config.json

@@ -1,9 +1,9 @@
 {
   "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"],
+  "plugins": ["plugins/markdown", "jsdoc/jsdoc-synonyms"],
   "opts": {
     "destination": "./out/",
     "recurse": true

jsdoc/undocumented.mjs

@@ -0,0 +1,84 @@
+import { readFile } from 'node:fs/promises';
+import { dirname, resolve } from 'path';
+import { fileURLToPath } from 'url';
+import { parse } from 'acorn';
+import dependencyTree from 'dependency-tree';
+const __dirname = dirname(fileURLToPath(import.meta.url));
+
+function getExports(code) {
+  // parse it with acorn
+  let ast;
+  try {
+    ast = parse(code, {
+      ecmaVersion: 11,
+      sourceType: 'module',
+    });
+  } catch (err) {
+    return [`acorn parse error: ${err.name}: ${err.messsage}`];
+  }
+
+  // find all names exported in the file
+  return ast.body
+    .filter((node) => node?.type === 'ExportNamedDeclaration')
+    .map((node) => {
+      const { declaration } = node;
+      if (!declaration) {
+        // e.g. "export { Fraction, controls }"
+        return [];
+      }
+      switch (declaration.type) {
+        case 'VariableDeclaration':
+          return declaration.declarations
+            .map((d) => {
+              switch (d.id.type) {
+                case 'Identifier':
+                  return d.id.name;
+                case 'ObjectPattern':
+                  return d.id.properties.map((p) => p.value.name);
+                default:
+                  return 'unknown declaration: ' + declaration;
+              }
+            })
+            .flat();
+        default:
+          // FunctionDeclaration, ClassDeclaration
+          return declaration.id.name;
+      }
+    })
+    .flat();
+}
+
+function isDocumented(name, docs) {
+  return docs.find(
+    (d) => d.name === name || d.tags?.find((t) => t.title === 'synonyms' && t.value.split(', ').includes(name)),
+  );
+}
+
+async function getUndocumented(path, docs) {
+  try {
+    // load the code of pattern.mjs as a string
+    const code = await readFile(path, 'utf8');
+    return getExports(code).filter((name) => !isDocumented(name, docs));
+  } catch (err) {
+    return [`parse error: ${err.name}: ${err.message}`];
+  }
+}
+
+// read doc.json file
+const { docs } = JSON.parse(await readFile(resolve(__dirname, '..', 'doc.json'), 'utf8'));
+
+const paths = dependencyTree.toList({
+  filename: 'index.mjs',
+  // filename: 'packages/core/index.mjs',
+  directory: resolve(__dirname),
+  filter: (path) => !path.includes('node_modules'),
+});
+// const paths = ['../packages/core/pattern.mjs', '../packages/core/hap.mjs'].map((rel) => resolve(__dirname, rel));
+
+const undocumented = Object.fromEntries(
+  await Promise.all(
+    paths.map(async (path) => [path.replace(resolve(__dirname, '..'), ''), await getUndocumented(path, docs)]),
+  ),
+);
+
+console.log(JSON.stringify(undocumented, null, 2));

lerna.json

@@ -1,6 +1,6 @@
 {
-  "packages": [
-    "packages/*"
-  ],
-  "version": "independent"
+  "packages": ["packages/*"],
+  "version": "independent",
+  "npmClient": "pnpm",
+  "$schema": "node_modules/lerna/schemas/lerna-schema.json"
 }

my-patterns/README.md

@@ -0,0 +1,59 @@
+# my-patterns
+
+This directory can be used to save your own patterns, which then get
+made into a pattern swatch.
+
+Example: <https://felixroos.github.io/strudel/swatch/>
+
+## deploy
+
+### 1. fork the [strudel repo on github](https://github.com/tidalcycles/strudel.git)
+
+### 2. clone your fork to your machine `git clone https://github.com/<your-username>/strudel.git strudel && cd strudel`
+
+### 3. create a separate branch like `git branch patternuary && git checkout patternuary`
+
+### 4. save one or more .txt files in the my-patterns folder
+
+### 5. edit `website/public/CNAME` to contain `<your-username>.github.io/strudel`
+
+### 6. edit `website/astro.config.mjs` to use site: `https://<your-username>.github.io` and base `/strudel`, like this
+
+```js
+const site = 'https://<your-username>.github.io';
+const base = '/strudel';
+```
+
+### 7. commit & push the changes
+
+```sh
+git add . && git commit -m "site config" && git push --set-upstream origin
+```
+
+### 8. deploy to github pages
+
+- go to settings -> pages and select "Github Actions" as source
+- go to settings -> environments -> github-pages and press the edit button next to `main` and type in `patternuary` (under "Deployment branches")
+- go to Actions -> `Build and Deploy` and click `Run workflow` with branch `patternuary`
+
+### 9. 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).
+
+### 10. optional: automatic deployment
+
+If you want to automatically deploy your site on push, go to `deploy.yml` and change `workflow_dispatch` to `push`.
+
+## running locally
+
+- install dependencies with `npm run setup`
+- run dev server with `npm run repl` and open `http://localhost:4321/strudel/swatch/`
+
+## tests fail?
+
+Your tests might fail if the code does not follow prettiers format.
+In that case, run `npm run codeformat`. To disable that, remove `npm run format-check` from `test.yml`
+
+## updating your fork
+
+To update your fork, you can pull the main branch and merge it into your `patternuary` branch.

package.json

@@ -1,23 +1,32 @@
 {
-  "name": "@strudel.cycles/monorepo",
-  "version": "0.0.1",
+  "name": "@strudel/monorepo",
+  "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",
-    "bootstrap": "lerna bootstrap",
-    "setup": "npm i && npm run bootstrap && cd repl && npm i && cd ../tutorial && npm i",
-    "repl": "cd repl && npm run dev",
+    "setup": "pnpm i",
+    "pretest": "npm run jsdoc-json",
+    "prebuild": "npm run jsdoc-json",
+    "prestart": "npm run jsdoc-json",
+    "test": "npm run pretest && vitest run --version",
+    "test-ui": "npm run pretest && vitest --ui",
+    "test-coverage": "npm run pretest && vitest --coverage",
+    "snapshot": "npm run pretest && vitest run -u --silent",
+    "repl": "npm run prestart && cd website && npm run dev",
+    "start": "npm run prestart && cd website && npm run dev",
+    "dev": "npm run prestart && cd website && npm run dev",
+    "build": "npm run prebuild && cd website && npm run build",
+    "preview": "cd website && npm run preview",
     "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",
-    "jsdoc": "jsdoc packages/ -c jsdoc.config.json",
-    "jsdoc-json": "jsdoc packages/ --template ./node_modules/jsdoc-json --destination doc.json -c jsdoc.config.json"
+    "jsdoc": "jsdoc packages/ -c jsdoc/jsdoc.config.json",
+    "jsdoc-json": "jsdoc packages/ --template ./node_modules/jsdoc-json --destination doc.json -c jsdoc/jsdoc.config.json",
+    "lint": "eslint . --ext mjs,js --quiet",
+    "codeformat": "prettier --write .",
+    "format-check": "prettier --check .",
+    "report-undocumented": "npm run jsdoc-json && node jsdoc/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/*"
-  ],
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tidalcycles/strudel.git"
@@ -34,14 +43,29 @@
   "bugs": {
     "url": "https://github.com/tidalcycles/strudel/issues"
   },
-  "homepage": "https://strudel.tidalcycles.org",
+  "homepage": "https://strudel.cc",
+  "dependencies": {
+    "@strudel/core": "workspace:*",
+    "@strudel/mini": "workspace:*",
+    "@strudel/tonal": "workspace:*",
+    "@strudel/transpiler": "workspace:*",
+    "@strudel/webaudio": "workspace:*",
+    "@strudel/xen": "workspace:*"
+  },
   "devDependencies": {
+    "dependency-tree": "^10.0.9",
+    "@tauri-apps/cli": "^1.5.9",
+    "@vitest/ui": "^1.1.0",
+    "canvas": "^2.11.2",
+    "eslint": "^8.56.0",
+    "eslint-plugin-import": "^2.29.1",
     "events": "^3.3.0",
-    "gh-pages": "^4.0.0",
-    "jsdoc": "^3.6.10",
+    "jsdoc": "^4.0.2",
     "jsdoc-json": "^2.0.2",
-    "jsdoc-to-markdown": "^7.1.1",
-    "lerna": "^4.0.0",
-    "mocha": "^9.1.4"
+    "jsdoc-to-markdown": "^8.0.0",
+    "lerna": "^8.0.1",
+    "prettier": "^3.1.1",
+    "rollup-plugin-visualizer": "^5.12.0",
+    "vitest": "^1.1.0"
   }
 }

packages/README.md

@@ -0,0 +1,5 @@
+# Packages
+
+Each folder represents one of the @strudel/* packages [published to npm](https://www.npmjs.com/org/strudel).
+
+To understand how those pieces connect, refer to the [Technical Manual](https://github.com/tidalcycles/strudel/wiki/Technical-Manual) or the individual READMEs.

packages/codemirror/README.md

@@ -0,0 +1,3 @@
+# @strudel/codemirror
+
+This package contains helpers and extensions to use codemirror6. See [vite-vanilla-repl-cm6](../core/examples/vite-vanilla-repl-cm6/main.js) as an example of using it.

packages/codemirror/autocomplete.mjs

@@ -0,0 +1,84 @@
+import jsdoc from '../../doc.json';
+// import { javascriptLanguage } from '@codemirror/lang-javascript';
+import { autocompletion } from '@codemirror/autocomplete';
+import { h } from './html';
+
+function plaintext(str) {
+  const div = document.createElement('div');
+  div.innerText = str;
+  return div.innerHTML;
+}
+
+const getDocLabel = (doc) => doc.name || doc.longname;
+const getInnerText = (html) => {
+  var div = document.createElement('div');
+  div.innerHTML = html;
+  return div.textContent || div.innerText || '';
+};
+
+export function Autocomplete({ doc, label }) {
+  return h`<div class="prose dark:prose-invert max-h-[400px] overflow-auto p-2">
+<h1 class="pt-0 mt-0">${label || getDocLabel(doc)}</h1>
+${doc.description}
+<ul>
+  ${doc.params?.map(
+    ({ name, type, description }) =>
+      `<li>${name} : ${type.names?.join(' | ')} ${description ? ` - ${getInnerText(description)}` : ''}</li>`,
+  )}
+</ul>
+<div>
+  ${doc.examples?.map((example) => `<div><pre>${plaintext(example)}</pre></div>`)}
+</div>
+</div>`[0];
+  /*
+<pre
+className="cursor-pointer"
+onMouseDown={(e) => {
+  console.log('ola!');
+  navigator.clipboard.writeText(example);
+  e.stopPropagation();
+}}
+>
+{example}
+</pre>
+*/
+}
+
+const jsdocCompletions = jsdoc.docs
+  .filter(
+    (doc) =>
+      getDocLabel(doc) &&
+      !getDocLabel(doc).startsWith('_') &&
+      !['package'].includes(doc.kind) &&
+      !['superdirtOnly', 'noAutocomplete'].some((tag) => doc.tags?.find((t) => t.originalTitle === tag)),
+  )
+  // https://codemirror.net/docs/ref/#autocomplete.Completion
+  .map((doc) /*: Completion */ => ({
+    label: getDocLabel(doc),
+    // detail: 'xxx', // An optional short piece of information to show (with a different style) after the label.
+    info: () => Autocomplete({ doc }),
+    type: 'function', // https://codemirror.net/docs/ref/#autocomplete.Completion.type
+  }));
+
+export const strudelAutocomplete = (context /* : CompletionContext */) => {
+  let word = context.matchBefore(/\w*/);
+  if (word.from == word.to && !context.explicit) return null;
+  return {
+    from: word.from,
+    options: jsdocCompletions,
+    /*     options: [
+      { label: 'match', type: 'keyword' },
+      { label: 'hello', type: 'variable', info: '(World)' },
+      { label: 'magic', type: 'text', apply: '⠁⭒*.✩.*⭒⠁', detail: 'macro' },
+    ], */
+  };
+};
+
+export function isAutoCompletionEnabled(on) {
+  return on
+    ? [
+        autocompletion({ override: [strudelAutocomplete] }),
+        //javascriptLanguage.data.of({ autocomplete: strudelAutocomplete }),
+      ]
+    : []; // autocompletion({ override: [] })
+}

packages/codemirror/codemirror.mjs

@@ -0,0 +1,344 @@
+import { closeBrackets } from '@codemirror/autocomplete';
+// import { search, highlightSelectionMatches } from '@codemirror/search';
+import { history } from '@codemirror/commands';
+import { javascript } from '@codemirror/lang-javascript';
+import { defaultHighlightStyle, syntaxHighlighting, bracketMatching } from '@codemirror/language';
+import { Compartment, EditorState, Prec } from '@codemirror/state';
+import {
+  EditorView,
+  highlightActiveLineGutter,
+  highlightActiveLine,
+  keymap,
+  lineNumbers,
+  drawSelection,
+} from '@codemirror/view';
+import { Pattern, Drawer, repl, cleanupDraw } from '@strudel/core';
+import { isAutoCompletionEnabled } from './autocomplete.mjs';
+import { isTooltipEnabled } from './tooltip.mjs';
+import { flash, isFlashEnabled } from './flash.mjs';
+import { highlightMiniLocations, isPatternHighlightingEnabled, updateMiniLocations } from './highlight.mjs';
+import { keybindings } from './keybindings.mjs';
+import { initTheme, activateTheme, theme } from './themes.mjs';
+import { updateWidgets, sliderPlugin } from './slider.mjs';
+import { persistentAtom } from '@nanostores/persistent';
+
+const extensions = {
+  isLineWrappingEnabled: (on) => (on ? EditorView.lineWrapping : []),
+  isBracketMatchingEnabled: (on) => (on ? bracketMatching({ brackets: '()[]{}<>' }) : []),
+  isLineNumbersDisplayed: (on) => (on ? lineNumbers() : []),
+  theme,
+  isAutoCompletionEnabled,
+  isTooltipEnabled,
+  isPatternHighlightingEnabled,
+  isActiveLineHighlighted: (on) => (on ? [highlightActiveLine(), highlightActiveLineGutter()] : []),
+  isFlashEnabled,
+  keybindings,
+};
+const compartments = Object.fromEntries(Object.keys(extensions).map((key) => [key, new Compartment()]));
+
+export const defaultSettings = {
+  keybindings: 'codemirror',
+  isBracketMatchingEnabled: false,
+  isLineNumbersDisplayed: true,
+  isActiveLineHighlighted: false,
+  isAutoCompletionEnabled: false,
+  isPatternHighlightingEnabled: true,
+  isFlashEnabled: true,
+  isTooltipEnabled: false,
+  isLineWrappingEnabled: false,
+  theme: 'strudelTheme',
+  fontFamily: 'monospace',
+  fontSize: 18,
+};
+
+export const codemirrorSettings = persistentAtom('codemirror-settings', defaultSettings, {
+  encode: JSON.stringify,
+  decode: JSON.parse,
+});
+
+// https://codemirror.net/docs/guide/
+export function initEditor({ initialCode = '', onChange, onEvaluate, onStop, root }) {
+  const settings = codemirrorSettings.get();
+  const initialSettings = Object.keys(compartments).map((key) =>
+    compartments[key].of(extensions[key](parseBooleans(settings[key]))),
+  );
+  initTheme(settings.theme);
+  let state = EditorState.create({
+    doc: initialCode,
+    extensions: [
+      /* search(),
+      highlightSelectionMatches(), */
+      ...initialSettings,
+      javascript(),
+      sliderPlugin,
+      // indentOnInput(), // works without. already brought with javascript extension?
+      // bracketMatching(), // does not do anything
+      closeBrackets(),
+      syntaxHighlighting(defaultHighlightStyle),
+      history(),
+      EditorView.updateListener.of((v) => onChange(v)),
+      drawSelection({ cursorBlinkRate: 0 }),
+      Prec.highest(
+        keymap.of([
+          {
+            key: 'Ctrl-Enter',
+            run: () => onEvaluate?.(),
+          },
+          {
+            key: 'Alt-Enter',
+            run: () => onEvaluate?.(),
+          },
+          {
+            key: 'Ctrl-.',
+            run: () => onStop?.(),
+          },
+          {
+            key: 'Alt-.',
+            run: (_, e) => {
+              e.preventDefault();
+              onStop?.();
+            },
+          },
+          /* {
+          key: 'Ctrl-Shift-.',
+          run: () => (onPanic ? onPanic() : onStop?.()),
+        },
+        {
+          key: 'Ctrl-Shift-Enter',
+          run: () => (onReEvaluate ? onReEvaluate() : onEvaluate?.()),
+        }, */
+        ]),
+      ),
+    ],
+  });
+
+  return new EditorView({
+    state,
+    parent: root,
+  });
+}
+
+export class StrudelMirror {
+  constructor(options) {
+    const {
+      root,
+      id,
+      initialCode = '',
+      onDraw,
+      drawTime = [0, 0],
+      autodraw,
+      prebake,
+      bgFill = true,
+      ...replOptions
+    } = options;
+    this.code = initialCode;
+    this.root = root;
+    this.miniLocations = [];
+    this.widgets = [];
+    this.painters = [];
+    this.drawTime = drawTime;
+    this.onDraw = onDraw;
+    const self = this;
+    this.id = id || s4();
+
+    this.drawer = new Drawer((haps, time) => {
+      const currentFrame = haps.filter((hap) => time >= hap.whole.begin && time <= hap.endClipped);
+      this.highlight(currentFrame, time);
+      this.onDraw?.(haps, time, currentFrame, this.painters);
+    }, drawTime);
+
+    // this approach does not work with multiple repls on screen
+    // TODO: refactor onPaint usages + find fix, maybe remove painters here?
+    Pattern.prototype.onPaint = function (onPaint) {
+      self.painters.push(onPaint);
+      return this;
+    };
+
+    this.prebaked = prebake();
+    autodraw && this.drawFirstFrame();
+
+    this.repl = repl({
+      ...replOptions,
+      onToggle: (started) => {
+        replOptions?.onToggle?.(started);
+        if (started) {
+          this.adjustDrawTime();
+          this.drawer.start(this.repl.scheduler);
+          // stop other repls when this one is started
+          document.dispatchEvent(
+            new CustomEvent('start-repl', {
+              detail: this.id,
+            }),
+          );
+        } else {
+          this.drawer.stop();
+          updateMiniLocations(this.editor, []);
+          cleanupDraw(false);
+        }
+      },
+      beforeEval: async () => {
+        cleanupDraw();
+        this.painters = [];
+        await this.prebaked;
+        await replOptions?.beforeEval?.();
+      },
+      afterEval: (options) => {
+        // remember for when highlighting is toggled on
+        this.miniLocations = options.meta?.miniLocations;
+        this.widgets = options.meta?.widgets;
+        updateWidgets(this.editor, this.widgets);
+        updateMiniLocations(this.editor, this.miniLocations);
+        replOptions?.afterEval?.(options);
+        this.adjustDrawTime();
+        this.drawer.invalidate();
+      },
+    });
+    this.editor = initEditor({
+      root,
+      initialCode,
+      onChange: (v) => {
+        if (v.docChanged) {
+          this.code = v.state.doc.toString();
+          this.repl.setCode?.(this.code);
+        }
+      },
+      onEvaluate: () => this.evaluate(),
+      onStop: () => this.stop(),
+    });
+    const cmEditor = this.root.querySelector('.cm-editor');
+    if (cmEditor) {
+      this.root.style.display = 'block';
+      if (bgFill) {
+        this.root.style.backgroundColor = 'var(--background)';
+      }
+      cmEditor.style.backgroundColor = 'transparent';
+    }
+    const settings = codemirrorSettings.get();
+    this.setFontSize(settings.fontSize);
+    this.setFontFamily(settings.fontFamily);
+
+    // stop this repl when another repl is started
+    this.onStartRepl = (e) => {
+      if (e.detail !== this.id) {
+        this.stop();
+      }
+    };
+    document.addEventListener('start-repl', this.onStartRepl);
+  }
+  // adjusts draw time depending on if there are painters
+  adjustDrawTime() {
+    // when no painters are set, [0,0] is enough (just highlighting)
+    this.drawer.setDrawTime(this.painters.length ? this.drawTime : [0, 0]);
+  }
+  async drawFirstFrame() {
+    if (!this.onDraw) {
+      return;
+    }
+    // draw first frame instantly
+    await this.prebaked;
+    try {
+      await this.repl.evaluate(this.code, false);
+      this.drawer.invalidate(this.repl.scheduler, -0.001);
+      // draw at -0.001 to avoid haps at 0 to be visualized as active
+      this.onDraw?.(this.drawer.visibleHaps, -0.001, [], this.painters);
+    } catch (err) {
+      console.warn('first frame could not be painted');
+    }
+  }
+  async evaluate() {
+    this.flash();
+    await this.repl.evaluate(this.code);
+  }
+  async stop() {
+    this.repl.scheduler.stop();
+  }
+  async toggle() {
+    if (this.repl.scheduler.started) {
+      this.repl.stop();
+    } else {
+      this.evaluate();
+    }
+  }
+  flash(ms) {
+    flash(this.editor, ms);
+  }
+  highlight(haps, time) {
+    highlightMiniLocations(this.editor, time, haps);
+  }
+  setFontSize(size) {
+    this.root.style.fontSize = size + 'px';
+  }
+  setFontFamily(family) {
+    this.root.style.fontFamily = family;
+    const scroller = this.root.querySelector('.cm-scroller');
+    if (scroller) {
+      scroller.style.fontFamily = family;
+    }
+  }
+  reconfigureExtension(key, value) {
+    if (!extensions[key]) {
+      console.warn(`extension ${key} is not known`);
+      return;
+    }
+    value = parseBooleans(value);
+    const newValue = extensions[key](value, this);
+    this.editor.dispatch({
+      effects: compartments[key].reconfigure(newValue),
+    });
+    if (key === 'theme') {
+      activateTheme(value);
+    }
+  }
+  setLineWrappingEnabled(enabled) {
+    this.reconfigureExtension('isLineWrappingEnabled', enabled);
+  }
+  setBracketMatchingEnabled(enabled) {
+    this.reconfigureExtension('isBracketMatchingEnabled', enabled);
+  }
+  setLineNumbersDisplayed(enabled) {
+    this.reconfigureExtension('isLineNumbersDisplayed', enabled);
+  }
+  setTheme(theme) {
+    this.reconfigureExtension('theme', theme);
+  }
+  setAutocompletionEnabled(enabled) {
+    this.reconfigureExtension('isAutoCompletionEnabled', enabled);
+  }
+  updateSettings(settings) {
+    this.setFontSize(settings.fontSize);
+    this.setFontFamily(settings.fontFamily);
+    for (let key in extensions) {
+      this.reconfigureExtension(key, settings[key]);
+    }
+    const updated = { ...codemirrorSettings.get(), ...settings };
+    codemirrorSettings.set(updated);
+  }
+  changeSetting(key, value) {
+    if (extensions[key]) {
+      this.reconfigureExtension(key, value);
+      return;
+    } else if (key === 'fontFamily') {
+      this.setFontFamily(value);
+    } else if (key === 'fontSize') {
+      this.setFontSize(value);
+    }
+  }
+  setCode(code) {
+    const changes = { from: 0, to: this.editor.state.doc.length, insert: code };
+    this.editor.dispatch({ changes });
+  }
+  clear() {
+    this.onStartRepl && document.removeEventListener('start-repl', this.onStartRepl);
+  }
+}
+
+function parseBooleans(value) {
+  return { true: true, false: false }[value] ?? value;
+}
+
+// helper function to generate repl ids
+function s4() {
+  return Math.floor((1 + Math.random()) * 0x10000)
+    .toString(16)
+    .substring(1);
+}

packages/codemirror/flash.mjs

@@ -0,0 +1,37 @@
+import { StateEffect, StateField } from '@codemirror/state';
+import { Decoration, EditorView } from '@codemirror/view';
+
+export const setFlash = StateEffect.define();
+export const flashField = StateField.define({
+  create() {
+    return Decoration.none;
+  },
+  update(flash, tr) {
+    try {
+      for (let e of tr.effects) {
+        if (e.is(setFlash)) {
+          if (e.value && tr.newDoc.length > 0) {
+            const mark = Decoration.mark({ attributes: { style: `background-color: #FFCA2880` } });
+            flash = Decoration.set([mark.range(0, tr.newDoc.length)]);
+          } else {
+            flash = Decoration.set([]);
+          }
+        }
+      }
+      return flash;
+    } catch (err) {
+      console.warn('flash error', err);
+      return flash;
+    }
+  },
+  provide: (f) => EditorView.decorations.from(f),
+});
+
+export const flash = (view, ms = 200) => {
+  view.dispatch({ effects: setFlash.of(true) });
+  setTimeout(() => {
+    view.dispatch({ effects: setFlash.of(false) });
+  }, ms);
+};
+
+export const isFlashEnabled = (on) => (on ? flashField : []);

packages/codemirror/highlight.mjs

@@ -0,0 +1,137 @@
+import { RangeSetBuilder, StateEffect, StateField } from '@codemirror/state';
+import { Decoration, EditorView } from '@codemirror/view';
+
+export const setMiniLocations = StateEffect.define();
+export const showMiniLocations = StateEffect.define();
+export const updateMiniLocations = (view, locations) => {
+  view.dispatch({ effects: setMiniLocations.of(locations) });
+};
+export const highlightMiniLocations = (view, atTime, haps) => {
+  view.dispatch({ effects: showMiniLocations.of({ atTime, haps }) });
+};
+
+const miniLocations = StateField.define({
+  create() {
+    return Decoration.none;
+  },
+  update(locations, tr) {
+    if (tr.docChanged) {
+      locations = locations.map(tr.changes);
+    }
+
+    for (let e of tr.effects) {
+      if (e.is(setMiniLocations)) {
+        // this is called on eval, with the mini locations obtained from the transpiler
+        // codemirror will automatically remap the marks when the document is edited
+        // create a mark for each mini location, adding the range to the spec to find it later
+        const marks = e.value
+          .filter(([from]) => from < tr.newDoc.length)
+          .map(([from, to]) => [from, Math.min(to, tr.newDoc.length)])
+          .map(
+            (range) =>
+              Decoration.mark({
+                id: range.join(':'),
+                // this green is only to verify that the decoration moves when the document is edited
+                // it will be removed later, so the mark is not visible by default
+                attributes: { style: `background-color: #00CA2880` },
+              }).range(...range), // -> Decoration
+          );
+
+        locations = Decoration.set(marks, true); // -> DecorationSet === RangeSet<Decoration>
+      }
+    }
+
+    return locations;
+  },
+});
+
+const visibleMiniLocations = StateField.define({
+  create() {
+    return { atTime: 0, haps: new Map() };
+  },
+  update(visible, tr) {
+    for (let e of tr.effects) {
+      if (e.is(showMiniLocations)) {
+        // this is called every frame to show the locations that are currently active
+        // we can NOT create new marks because the context.locations haven't changed since eval time
+        // this is why we need to find a way to update the existing decorations, showing the ones that have an active range
+        const haps = new Map();
+        for (let hap of e.value.haps) {
+          if (!hap.context?.locations || !hap.whole) {
+            continue;
+          }
+          for (let { start, end } of hap.context.locations) {
+            let id = `${start}:${end}`;
+            if (!haps.has(id) || haps.get(id).whole.begin.lt(hap.whole.begin)) {
+              haps.set(id, hap);
+            }
+          }
+        }
+        visible = { atTime: e.value.atTime, haps };
+      }
+    }
+
+    return visible;
+  },
+});
+
+// // Derive the set of decorations from the miniLocations and visibleLocations
+const miniLocationHighlights = EditorView.decorations.compute([miniLocations, visibleMiniLocations], (state) => {
+  const iterator = state.field(miniLocations).iter();
+  const { haps } = state.field(visibleMiniLocations);
+  const builder = new RangeSetBuilder();
+
+  while (iterator.value) {
+    const {
+      from,
+      to,
+      value: {
+        spec: { id },
+      },
+    } = iterator;
+
+    if (haps.has(id)) {
+      const hap = haps.get(id);
+      const color = hap.context.color ?? 'var(--foreground)';
+      // Get explicit channels for color values
+      /* 
+      const swatch = document.createElement('div');
+      swatch.style.color = color;
+      document.body.appendChild(swatch);
+      let channels = getComputedStyle(swatch)
+        .color.match(/^rgba?\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})(?:,\s*(\d*(?:\.\d+)?))?\)$/)
+        .slice(1)
+        .map((c) => parseFloat(c || 1));
+      document.body.removeChild(swatch);
+
+      // Get percentage of event
+      const percent = 1 - (atTime - hap.whole.begin) / hap.whole.duration;
+      channels[3] *= percent;
+      */
+
+      builder.add(
+        from,
+        to,
+        Decoration.mark({
+          // attributes: { style: `outline: solid 2px rgba(${channels.join(', ')})` },
+          attributes: { style: `outline: solid 2px ${color}` },
+        }),
+      );
+    }
+
+    iterator.next();
+  }
+
+  return builder.finish();
+});
+
+export const highlightExtension = [miniLocations, visibleMiniLocations, miniLocationHighlights];
+
+export const isPatternHighlightingEnabled = (on, config) => {
+  on &&
+    config &&
+    setTimeout(() => {
+      updateMiniLocations(config.editor, config.miniLocations);
+    }, 100);
+  return on ? highlightExtension : [];
+};

packages/codemirror/html.mjs

@@ -0,0 +1,17 @@
+const parser = typeof DOMParser !== 'undefined' ? new DOMParser() : null;
+export let html = (string) => {
+  return parser?.parseFromString(string, 'text/html').querySelectorAll('*');
+};
+let parseChunk = (chunk) => {
+  if (Array.isArray(chunk)) return chunk.flat().join('');
+  if (chunk === undefined) return '';
+  return chunk;
+};
+export let h = (strings, ...vars) => {
+  let string = '';
+  for (let i in strings) {
+    string += parseChunk(strings[i]);
+    string += parseChunk(vars[i]);
+  }
+  return html(string);
+};

packages/codemirror/index.mjs

@@ -0,0 +1,5 @@
+export * from './codemirror.mjs';
+export * from './highlight.mjs';
+export * from './flash.mjs';
+export * from './slider.mjs';
+export * from './themes.mjs';

packages/codemirror/keybindings.mjs

@@ -0,0 +1,31 @@
+import { Prec } from '@codemirror/state';
+import { keymap, ViewPlugin } from '@codemirror/view';
+// import { searchKeymap } from '@codemirror/search';
+import { emacs } from '@replit/codemirror-emacs';
+import { vim } from '@replit/codemirror-vim';
+import { vscodeKeymap } from '@replit/codemirror-vscode-keymap';
+import { defaultKeymap, historyKeymap } from '@codemirror/commands';
+
+const vscodePlugin = ViewPlugin.fromClass(
+  class {
+    constructor() {}
+  },
+  {
+    provide: () => {
+      return Prec.highest(keymap.of([...vscodeKeymap]));
+    },
+  },
+);
+const vscodeExtension = (options) => [vscodePlugin].concat(options ?? []);
+
+const keymaps = {
+  vim,
+  emacs,
+  vscode: vscodeExtension,
+};
+
+export function keybindings(name) {
+  const active = keymaps[name];
+  return [keymap.of(defaultKeymap), keymap.of(historyKeymap), active ? active() : []];
+  // keymap.of(searchKeymap),
+}

packages/codemirror/package.json

@@ -0,0 +1,55 @@
+{
+  "name": "@strudel/codemirror",
+  "version": "1.0.1",
+  "description": "Codemirror Extensions for Strudel",
+  "main": "index.mjs",
+  "publishConfig": {
+    "main": "dist/index.mjs"
+  },
+  "scripts": {
+    "build": "vite build",
+    "prepublishOnly": "npm run build"
+  },
+  "type": "module",
+  "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": {
+    "@codemirror/autocomplete": "^6.11.1",
+    "@codemirror/commands": "^6.3.3",
+    "@codemirror/lang-javascript": "^6.2.1",
+    "@codemirror/language": "^6.10.0",
+    "@codemirror/search": "^6.5.5",
+    "@codemirror/state": "^6.4.0",
+    "@codemirror/view": "^6.23.0",
+    "@lezer/highlight": "^1.2.0",
+    "@nanostores/persistent": "^0.9.1",
+    "@replit/codemirror-emacs": "^6.0.1",
+    "@replit/codemirror-vim": "^6.1.0",
+    "@replit/codemirror-vscode-keymap": "^6.0.2",
+    "@strudel/core": "workspace:*",
+    "@uiw/codemirror-themes": "^4.21.21",
+    "@uiw/codemirror-themes-all": "^4.21.21",
+    "nanostores": "^0.9.5"
+  },
+  "devDependencies": {
+    "vite": "^5.0.10"
+  }
+}

packages/codemirror/slider.mjs

@@ -0,0 +1,144 @@
+import { ref, pure } from '@strudel/core';
+import { WidgetType, ViewPlugin, Decoration } from '@codemirror/view';
+import { StateEffect, StateField } from '@codemirror/state';
+
+export let sliderValues = {};
+const getSliderID = (from) => `slider_${from}`;
+
+export class SliderWidget extends WidgetType {
+  constructor(value, min, max, from, to, step, view) {
+    super();
+    this.value = value;
+    this.min = min;
+    this.max = max;
+    this.from = from;
+    this.originalFrom = from;
+    this.to = to;
+    this.step = step;
+    this.view = view;
+  }
+
+  eq() {
+    return false;
+  }
+
+  toDOM() {
+    let wrap = document.createElement('span');
+    wrap.setAttribute('aria-hidden', 'true');
+    wrap.className = 'cm-slider'; // inline-flex items-center
+    let slider = wrap.appendChild(document.createElement('input'));
+    slider.type = 'range';
+    slider.min = this.min;
+    slider.max = this.max;
+    slider.step = this.step ?? (this.max - this.min) / 1000;
+    slider.originalValue = this.value;
+    // to make sure the code stays in sync, let's save the original value
+    // becuase .value automatically clamps values so it'll desync with the code
+    slider.value = slider.originalValue;
+    slider.from = this.from;
+    slider.originalFrom = this.originalFrom;
+    slider.to = this.to;
+    slider.style = 'width:64px;margin-right:4px;transform:translateY(4px)';
+    this.slider = slider;
+    slider.addEventListener('input', (e) => {
+      const next = e.target.value;
+      let insert = next;
+      //let insert = next.toFixed(2);
+      const to = slider.from + slider.originalValue.length;
+      let change = { from: slider.from, to, insert };
+      slider.originalValue = insert;
+      slider.value = insert;
+      this.view.dispatch({ changes: change });
+      const id = getSliderID(slider.originalFrom); // matches id generated in transpiler
+      window.postMessage({ type: 'cm-slider', value: Number(next), id });
+    });
+    return wrap;
+  }
+
+  ignoreEvent(e) {
+    return true;
+  }
+}
+
+export const setWidgets = StateEffect.define();
+
+export const updateWidgets = (view, widgets) => {
+  view.dispatch({ effects: setWidgets.of(widgets) });
+};
+
+function getWidgets(widgetConfigs, view) {
+  return widgetConfigs.map(({ from, to, value, min, max, step }) => {
+    return Decoration.widget({
+      widget: new SliderWidget(value, min, max, from, to, step, view),
+      side: 0,
+    }).range(from /* , to */);
+  });
+}
+
+export const sliderPlugin = ViewPlugin.fromClass(
+  class {
+    decorations; //: DecorationSet
+
+    constructor(view /* : EditorView */) {
+      this.decorations = Decoration.set([]);
+    }
+
+    update(update /* : ViewUpdate */) {
+      update.transactions.forEach((tr) => {
+        if (tr.docChanged) {
+          this.decorations = this.decorations.map(tr.changes);
+          const iterator = this.decorations.iter();
+          while (iterator.value) {
+            // when the widgets are moved, we need to tell the dom node the current position
+            // this is important because the updateSliderValue function has to work with the dom node
+            if (iterator.value?.widget?.slider) {
+              iterator.value.widget.slider.from = iterator.from;
+              iterator.value.widget.slider.to = iterator.to;
+            }
+            iterator.next();
+          }
+        }
+        for (let e of tr.effects) {
+          if (e.is(setWidgets)) {
+            this.decorations = Decoration.set(getWidgets(e.value, update.view));
+          }
+        }
+      });
+    }
+  },
+  {
+    decorations: (v) => v.decorations,
+  },
+);
+
+/**
+ * Displays a slider widget to allow the user manipulate a value
+ *
+ * @name slider
+ * @param {number} value Initial value
+ * @param {number} min Minimum value - optional, defaults to 0
+ * @param {number} max Maximum value - optional, defaults to 1
+ * @param {number} step Step size - optional
+ */
+export let slider = (value) => {
+  console.warn('slider will only work when the transpiler is used... passing value as is');
+  return pure(value);
+};
+// function transpiled from slider = (value, min, max)
+export let sliderWithID = (id, value, min, max) => {
+  sliderValues[id] = value; // sync state at eval time (code -> state)
+  return ref(() => sliderValues[id]); // use state at query time
+};
+// update state when sliders are moved
+if (typeof window !== 'undefined') {
+  window.addEventListener('message', (e) => {
+    if (e.data.type === 'cm-slider') {
+      if (sliderValues[e.data.id] !== undefined) {
+        // update state when slider is moved
+        sliderValues[e.data.id] = e.data.value;
+      } else {
+        console.warn(`slider with id "${e.data.id}" is not registered. Only ${Object.keys(sliderValues)}`);
+      }
+    }
+  });
+}

packages/codemirror/themes.mjs

@@ -0,0 +1,527 @@
+import {
+  abcdef,
+  androidstudio,
+  atomone,
+  aura,
+  bespin,
+  darcula,
+  dracula,
+  duotoneDark,
+  eclipse,
+  githubDark,
+  gruvboxDark,
+  materialDark,
+  nord,
+  okaidia,
+  solarizedDark,
+  sublime,
+  tokyoNight,
+  tokyoNightStorm,
+  vscodeDark,
+  xcodeDark,
+  bbedit,
+  duotoneLight,
+  githubLight,
+  gruvboxLight,
+  materialLight,
+  noctisLilac,
+  solarizedLight,
+  tokyoNightDay,
+  xcodeLight,
+} from '@uiw/codemirror-themes-all';
+
+import strudelTheme from './themes/strudel-theme';
+import bluescreen, { settings as bluescreenSettings } from './themes/bluescreen';
+import blackscreen, { settings as blackscreenSettings } from './themes/blackscreen';
+import whitescreen, { settings as whitescreenSettings } from './themes/whitescreen';
+import teletext, { settings as teletextSettings } from './themes/teletext';
+import algoboy, { settings as algoboySettings } from './themes/algoboy';
+import terminal, { settings as terminalSettings } from './themes/terminal';
+
+export const themes = {
+  strudelTheme,
+  bluescreen,
+  blackscreen,
+  whitescreen,
+  teletext,
+  algoboy,
+  terminal,
+  abcdef,
+  androidstudio,
+  atomone,
+  aura,
+  bespin,
+  darcula,
+  dracula,
+  duotoneDark,
+  eclipse,
+  githubDark,
+  gruvboxDark,
+  materialDark,
+  nord,
+  okaidia,
+  solarizedDark,
+  sublime,
+  tokyoNight,
+  tokyoNightStorm,
+  vscodeDark,
+  xcodeDark,
+  bbedit,
+  duotoneLight,
+  githubLight,
+  gruvboxLight,
+  materialLight,
+  noctisLilac,
+  solarizedLight,
+  tokyoNightDay,
+  xcodeLight,
+};
+
+// lineBackground is background with 50% opacity, to make sure the selection below is visible
+
+export const settings = {
+  strudelTheme: {
+    background: '#222',
+    lineBackground: '#22222299',
+    foreground: '#fff',
+    // foreground: '#75baff',
+    caret: '#ffcc00',
+    selection: 'rgba(128, 203, 196, 0.5)',
+    selectionMatch: '#036dd626',
+    // lineHighlight: '#8a91991a', // original
+    lineHighlight: '#00000050',
+    gutterBackground: 'transparent',
+    // gutterForeground: '#8a919966',
+    gutterForeground: '#8a919966',
+  },
+  bluescreen: bluescreenSettings,
+  blackscreen: blackscreenSettings,
+  whitescreen: whitescreenSettings,
+  teletext: teletextSettings,
+  algoboy: algoboySettings,
+  terminal: terminalSettings,
+  abcdef: {
+    background: '#0f0f0f',
+    lineBackground: '#0f0f0f99',
+    foreground: '#defdef',
+    caret: '#00FF00',
+    selection: '#515151',
+    selectionMatch: '#515151',
+    gutterBackground: '#555',
+    gutterForeground: '#FFFFFF',
+    lineHighlight: '#314151',
+  },
+  androidstudio: {
+    background: '#282b2e',
+    lineBackground: '#282b2e99',
+    foreground: '#a9b7c6',
+    caret: '#00FF00',
+    selection: '#343739',
+    selectionMatch: '#343739',
+    lineHighlight: '#343739',
+  },
+  atomone: {
+    background: '#272C35',
+    lineBackground: '#272C3599',
+    foreground: '#9d9b97',
+    caret: '#797977',
+    selection: '#ffffff30',
+    selectionMatch: '#2B323D',
+    gutterBackground: '#272C35',
+    gutterForeground: '#465063',
+    gutterBorder: 'transparent',
+    lineHighlight: '#2B323D',
+  },
+  aura: {
+    background: '#21202e',
+    lineBackground: '#21202e99',
+    foreground: '#edecee',
+    caret: '#a277ff',
+    selection: '#3d375e7f',
+    selectionMatch: '#3d375e7f',
+    gutterBackground: '#21202e',
+    gutterForeground: '#edecee',
+    gutterBorder: 'transparent',
+    lineHighlight: '#a394f033',
+  },
+  bbedit: {
+    light: true,
+    background: '#FFFFFF',
+    lineBackground: '#FFFFFF99',
+    foreground: '#000000',
+    caret: '#FBAC52',
+    selection: '#FFD420',
+    selectionMatch: '#FFD420',
+    gutterBackground: '#f5f5f5',
+    gutterForeground: '#4D4D4C',
+    gutterBorder: 'transparent',
+    lineHighlight: '#00000012',
+  },
+  bespin: {
+    background: '#28211c',
+    lineBackground: '#28211c99',
+    foreground: '#9d9b97',
+    caret: '#797977',
+    selection: '#36312e',
+    selectionMatch: '#4f382b',
+    gutterBackground: '#28211c',
+    gutterForeground: '#666666',
+    lineHighlight: 'rgba(255, 255, 255, 0.1)',
+  },
+  darcula: {
+    background: '#2B2B2B',
+    lineBackground: '#2B2B2B99',
+    foreground: '#f8f8f2',
+    caret: '#FFFFFF',
+    selection: 'rgba(255, 255, 255, 0.1)',
+    selectionMatch: 'rgba(255, 255, 255, 0.2)',
+    gutterBackground: 'rgba(255, 255, 255, 0.1)',
+    gutterForeground: '#999',
+    gutterBorder: 'transparent',
+    lineHighlight: 'rgba(255, 255, 255, 0.1)',
+  },
+  dracula: {
+    background: '#282a36',
+    lineBackground: '#282a3699',
+    foreground: '#f8f8f2',
+    caret: '#f8f8f0',
+    selection: 'rgba(255, 255, 255, 0.1)',
+    selectionMatch: 'rgba(255, 255, 255, 0.2)',
+    gutterBackground: '#282a36',
+    gutterForeground: '#6D8A88',
+    gutterBorder: 'transparent',
+    lineHighlight: 'rgba(255, 255, 255, 0.1)',
+  },
+  duotoneLight: {
+    light: true,
+    background: '#faf8f5',
+    lineBackground: '#faf8f599',
+    foreground: '#b29762',
+    caret: '#93abdc',
+    selection: '#e3dcce',
+    selectionMatch: '#e3dcce',
+    gutterBackground: '#faf8f5',
+    gutterForeground: '#cdc4b1',
+    gutterBorder: 'transparent',
+    lineHighlight: '#EFEFEF',
+  },
+  duotoneDark: {
+    background: '#2a2734',
+    lineBackground: '#2a273499',
+    foreground: '#6c6783',
+    caret: '#ffad5c',
+    selection: 'rgba(255, 255, 255, 0.1)',
+    gutterBackground: '#2a2734',
+    gutterForeground: '#545167',
+    lineHighlight: '#36334280',
+  },
+  eclipse: {
+    light: true,
+    background: '#fff',
+    lineBackground: '#ffffff99',
+    foreground: '#000',
+    caret: '#FFFFFF',
+    selection: '#d7d4f0',
+    selectionMatch: '#d7d4f0',
+    gutterBackground: '#f7f7f7',
+    gutterForeground: '#999',
+    lineHighlight: '#e8f2ff',
+    gutterBorder: 'transparent',
+  },
+  githubLight: {
+    light: true,
+    background: '#fff',
+    lineBackground: '#ffffff99',
+    foreground: '#24292e',
+    selection: '#BBDFFF',
+    selectionMatch: '#BBDFFF',
+    gutterBackground: '#fff',
+    gutterForeground: '#6e7781',
+  },
+  githubDark: {
+    background: '#0d1117',
+    lineBackground: '#0d111799',
+    foreground: '#c9d1d9',
+    caret: '#c9d1d9',
+    selection: '#003d73',
+    selectionMatch: '#003d73',
+    lineHighlight: '#36334280',
+  },
+  gruvboxDark: {
+    background: '#282828',
+    lineBackground: '#28282899',
+    foreground: '#ebdbb2',
+    caret: '#ebdbb2',
+    selection: '#bdae93',
+    selectionMatch: '#bdae93',
+    lineHighlight: '#3c3836',
+    gutterBackground: '#282828',
+    gutterForeground: '#7c6f64',
+  },
+  gruvboxLight: {
+    light: true,
+    background: '#fbf1c7',
+    lineBackground: '#fbf1c799',
+    foreground: '#3c3836',
+    caret: '#af3a03',
+    selection: '#ebdbb2',
+    selectionMatch: '#bdae93',
+    lineHighlight: '#ebdbb2',
+    gutterBackground: '#ebdbb2',
+    gutterForeground: '#665c54',
+    gutterBorder: 'transparent',
+  },
+  materialDark: {
+    background: '#2e3235',
+    lineBackground: '#2e323599',
+    foreground: '#bdbdbd',
+    caret: '#a0a4ae',
+    selection: '#d7d4f0',
+    selectionMatch: '#d7d4f0',
+    gutterBackground: '#2e3235',
+    gutterForeground: '#999',
+    gutterActiveForeground: '#4f5b66',
+    lineHighlight: '#545b61',
+  },
+  materialLight: {
+    light: true,
+    background: '#FAFAFA',
+    lineBackground: '#FAFAFA99',
+    foreground: '#90A4AE',
+    caret: '#272727',
+    selection: '#80CBC440',
+    selectionMatch: '#FAFAFA',
+    gutterBackground: '#FAFAFA',
+    gutterForeground: '#90A4AE',
+    gutterBorder: 'transparent',
+    lineHighlight: '#CCD7DA50',
+  },
+  noctisLilac: {
+    light: true,
+    background: '#f2f1f8',
+    lineBackground: '#f2f1f899',
+    foreground: '#0c006b',
+    caret: '#5c49e9',
+    selection: '#d5d1f2',
+    selectionMatch: '#d5d1f2',
+    gutterBackground: '#f2f1f8',
+    gutterForeground: '#0c006b70',
+    lineHighlight: '#e1def3',
+  },
+  nord: {
+    background: '#2e3440',
+    lineBackground: '#2e344099',
+    foreground: '#FFFFFF',
+    caret: '#FFFFFF',
+    selection: '#3b4252',
+    selectionMatch: '#e5e9f0',
+    gutterBackground: '#2e3440',
+    gutterForeground: '#4c566a',
+    gutterActiveForeground: '#d8dee9',
+    lineHighlight: '#4c566a',
+  },
+  okaidia: {
+    background: '#272822',
+    lineBackground: '#27282299',
+    foreground: '#FFFFFF',
+    caret: '#FFFFFF',
+    selection: '#49483E',
+    selectionMatch: '#49483E',
+    gutterBackground: '#272822',
+    gutterForeground: '#FFFFFF70',
+    lineHighlight: '#00000059',
+  },
+  solarizedLight: {
+    light: true,
+    background: '#fdf6e3',
+    lineBackground: '#fdf6e399',
+    foreground: '#657b83',
+    caret: '#586e75',
+    selection: '#dfd9c8',
+    selectionMatch: '#dfd9c8',
+    gutterBackground: '#00000010',
+    gutterForeground: '#657b83',
+    lineHighlight: '#dfd9c8',
+  },
+  solarizedDark: {
+    background: '#002b36',
+    lineBackground: '#002b3699',
+    foreground: '#93a1a1',
+    caret: '#839496',
+    selection: '#173541',
+    selectionMatch: '#aafe661a',
+    gutterBackground: '#00252f',
+    gutterForeground: '#839496',
+    lineHighlight: '#173541',
+  },
+  sublime: {
+    background: '#303841',
+    lineBackground: '#30384199',
+    foreground: '#FFFFFF',
+    caret: '#FBAC52',
+    selection: '#4C5964',
+    selectionMatch: '#3A546E',
+    gutterBackground: '#303841',
+    gutterForeground: '#FFFFFF70',
+    lineHighlight: '#00000059',
+  },
+  tokyoNightDay: {
+    light: true,
+    background: '#e1e2e7',
+    lineBackground: '#e1e2e799',
+    foreground: '#3760bf',
+    caret: '#3760bf',
+    selection: '#99a7df',
+    selectionMatch: '#99a7df',
+    gutterBackground: '#e1e2e7',
+    gutterForeground: '#3760bf',
+    gutterBorder: 'transparent',
+    lineHighlight: '#5f5faf11',
+  },
+  tokyoNightStorm: {
+    background: '#24283b',
+    lineBackground: '#24283b99',
+    foreground: '#7982a9',
+    caret: '#c0caf5',
+    selection: '#6f7bb630',
+    selectionMatch: '#1f2335',
+    gutterBackground: '#24283b',
+    gutterForeground: '#7982a9',
+    gutterBorder: 'transparent',
+    lineHighlight: '#292e42',
+  },
+  tokyoNight: {
+    background: '#1a1b26',
+    lineBackground: '#1a1b2699',
+    foreground: '#787c99',
+    caret: '#c0caf5',
+    selection: '#515c7e40',
+    selectionMatch: '#16161e',
+    gutterBackground: '#1a1b26',
+    gutterForeground: '#787c99',
+    gutterBorder: 'transparent',
+    lineHighlight: '#1e202e',
+  },
+  vscodeDark: {
+    background: '#1e1e1e',
+    lineBackground: '#1e1e1e99',
+    foreground: '#9cdcfe',
+    caret: '#c6c6c6',
+    selection: '#6199ff2f',
+    selectionMatch: '#72a1ff59',
+    lineHighlight: '#ffffff0f',
+    gutterBackground: '#1e1e1e',
+    gutterForeground: '#838383',
+    gutterActiveForeground: '#fff',
+  },
+  xcodeLight: {
+    light: true,
+    background: '#fff',
+    lineBackground: '#ffffff99',
+    foreground: '#3D3D3D',
+    selection: '#BBDFFF',
+    selectionMatch: '#BBDFFF',
+    gutterBackground: '#fff',
+    gutterForeground: '#AFAFAF',
+    lineHighlight: '#EDF4FF',
+  },
+  xcodeDark: {
+    background: '#292A30',
+    lineBackground: '#292A3099',
+    foreground: '#CECFD0',
+    caret: '#fff',
+    selection: '#727377',
+    selectionMatch: '#727377',
+    lineHighlight: '#2F3239',
+  },
+};
+
+function getColors(str) {
+  const colorRegex = /#([0-9A-Fa-f]{6}|[0-9A-Fa-f]{3})/g;
+  const colors = [];
+
+  let match;
+  while ((match = colorRegex.exec(str)) !== null) {
+    const color = match[0];
+    if (!colors.includes(color)) {
+      colors.push(color);
+    }
+  }
+
+  return colors;
+}
+
+// TODO: remove
+export function themeColors(theme) {
+  return getColors(stringifySafe(theme));
+}
+
+function getCircularReplacer() {
+  const seen = new WeakSet();
+  return (key, value) => {
+    if (typeof value === 'object' && value !== null) {
+      if (seen.has(value)) {
+        return;
+      }
+      seen.add(value);
+    }
+    return value;
+  };
+}
+
+function stringifySafe(json) {
+  return JSON.stringify(json, getCircularReplacer());
+}
+
+export const theme = (theme) => themes[theme] || themes.strudelTheme;
+
+// css style injection helpers
+export function injectStyle(rule) {
+  const newStyle = document.createElement('style');
+  document.head.appendChild(newStyle);
+  const styleSheet = newStyle.sheet;
+  const ruleIndex = styleSheet.insertRule(rule, 0);
+  return () => styleSheet.deleteRule(ruleIndex);
+}
+
+let currentTheme,
+  resetThemeStyle,
+  themeStyle,
+  styleID = 'strudel-theme-vars';
+export function initTheme(theme) {
+  if (!document.getElementById(styleID)) {
+    themeStyle = document.createElement('style');
+    themeStyle.id = styleID;
+    document.head.append(themeStyle);
+  }
+  activateTheme(theme);
+}
+
+export function activateTheme(name) {
+  if (currentTheme === name) {
+    return;
+  }
+  currentTheme = name;
+  if (!settings[name]) {
+    console.warn('theme', name, 'has no settings.. defaulting to strudelTheme settings');
+  }
+  const themeSettings = settings[name] || settings.strudelTheme;
+  // set css variables
+  themeStyle.innerHTML = `:root {
+      ${Object.entries(themeSettings)
+        // important to override fallback
+        .map(([key, value]) => `--${key}: ${value} !important;`)
+        .join('\n')}
+    }`;
+  // tailwind dark mode
+  if (themeSettings.light) {
+    document.documentElement.classList.remove('dark');
+  } else {
+    document.documentElement.classList.add('dark');
+  }
+  resetThemeStyle?.();
+  resetThemeStyle = undefined;
+  if (themeSettings.customStyle) {
+    resetThemeStyle = injectStyle(themeSettings.customStyle);
+  }
+}

packages/codemirror/themes/algoboy.mjs

@@ -0,0 +1,41 @@
+import { tags as t } from '@lezer/highlight';
+import { createTheme } from '@uiw/codemirror-themes';
+export const settings = {
+  background: '#9bbc0f',
+  foreground: '#0f380f', // whats that?
+  caret: '#0f380f',
+  selection: '#306230',
+  selectionMatch: '#ffffff26',
+  lineHighlight: '#8bac0f',
+  lineBackground: '#9bbc0f50',
+  //lineBackground: 'transparent',
+  gutterBackground: 'transparent',
+  gutterForeground: '#0f380f',
+  light: true,
+  customStyle: '.cm-line { line-height: 1 }',
+};
+export default createTheme({
+  theme: 'light',
+  settings,
+  styles: [
+    { tag: t.keyword, color: '#0f380f' },
+    { tag: t.operator, color: '#0f380f' },
+    { tag: t.special(t.variableName), color: '#0f380f' },
+    { tag: t.typeName, color: '#0f380f' },
+    { tag: t.atom, color: '#0f380f' },
+    { tag: t.number, color: '#0f380f' },
+    { tag: t.definition(t.variableName), color: '#0f380f' },
+    { tag: t.string, color: '#0f380f' },
+    { tag: t.special(t.string), color: '#0f380f' },
+    { tag: t.comment, color: '#0f380f' },
+    { tag: t.variableName, color: '#0f380f' },
+    { tag: t.tagName, color: '#0f380f' },
+    { tag: t.bracket, color: '#0f380f' },
+    { tag: t.meta, color: '#0f380f' },
+    { tag: t.attributeName, color: '#0f380f' },
+    { tag: t.propertyName, color: '#0f380f' },
+    { tag: t.className, color: '#0f380f' },
+    { tag: t.invalid, color: '#0f380f' },
+    { tag: [t.unit, t.punctuation], color: '#0f380f' },
+  ],
+});

packages/codemirror/themes/blackscreen.mjs

@@ -0,0 +1,38 @@
+import { tags as t } from '@lezer/highlight';
+import { createTheme } from '@uiw/codemirror-themes';
+export const settings = {
+  background: 'black',
+  foreground: 'white', // whats that?
+  caret: 'white',
+  selection: '#ffffff20',
+  selectionMatch: '#036dd626',
+  lineHighlight: '#ffffff10',
+  lineBackground: '#00000050',
+  gutterBackground: 'transparent',
+  gutterForeground: '#8a919966',
+};
+export default createTheme({
+  theme: 'dark',
+  settings,
+  styles: [
+    { tag: t.keyword, color: 'white' },
+    { tag: t.operator, color: 'white' },
+    { tag: t.special(t.variableName), color: 'white' },
+    { tag: t.typeName, color: 'white' },
+    { tag: t.atom, color: 'white' },
+    { tag: t.number, color: 'white' },
+    { tag: t.definition(t.variableName), color: 'white' },
+    { tag: t.string, color: 'white' },
+    { tag: t.special(t.string), color: 'white' },
+    { tag: t.comment, color: 'white' },
+    { tag: t.variableName, color: 'white' },
+    { tag: t.tagName, color: 'white' },
+    { tag: t.bracket, color: 'white' },
+    { tag: t.meta, color: 'white' },
+    { tag: t.attributeName, color: 'white' },
+    { tag: t.propertyName, color: 'white' },
+    { tag: t.className, color: 'white' },
+    { tag: t.invalid, color: 'white' },
+    { tag: [t.unit, t.punctuation], color: 'white' },
+  ],
+});

packages/codemirror/themes/bluescreen.mjs

@@ -0,0 +1,41 @@
+import { tags as t } from '@lezer/highlight';
+import { createTheme } from '@uiw/codemirror-themes';
+export const settings = {
+  background: '#051DB5',
+  lineBackground: '#051DB550',
+  foreground: 'white', // whats that?
+  caret: 'white',
+  selection: 'rgba(128, 203, 196, 0.5)',
+  selectionMatch: '#036dd626',
+  // lineHighlight: '#8a91991a', // original
+  lineHighlight: '#00000050',
+  gutterBackground: 'transparent',
+  // gutterForeground: '#8a919966',
+  gutterForeground: '#8a919966',
+};
+
+export default createTheme({
+  theme: 'dark',
+  settings,
+  styles: [
+    { tag: t.keyword, color: 'white' },
+    { tag: t.operator, color: 'white' },
+    { tag: t.special(t.variableName), color: 'white' },
+    { tag: t.typeName, color: 'white' },
+    { tag: t.atom, color: 'white' },
+    { tag: t.number, color: 'white' },
+    { tag: t.definition(t.variableName), color: 'white' },
+    { tag: t.string, color: 'white' },
+    { tag: t.special(t.string), color: 'white' },
+    { tag: t.comment, color: 'white' },
+    { tag: t.variableName, color: 'white' },
+    { tag: t.tagName, color: 'white' },
+    { tag: t.bracket, color: 'white' },
+    { tag: t.meta, color: 'white' },
+    { tag: t.attributeName, color: 'white' },
+    { tag: t.propertyName, color: 'white' },
+    { tag: t.className, color: 'white' },
+    { tag: t.invalid, color: 'white' },
+    { tag: [t.unit, t.punctuation], color: 'white' },
+  ],
+});

packages/codemirror/themes/strudel-theme.mjs

@@ -0,0 +1,45 @@
+import { tags as t } from '@lezer/highlight';
+import { createTheme } from '@uiw/codemirror-themes';
+export default createTheme({
+  theme: 'dark',
+  settings: {
+    background: '#222',
+    foreground: '#75baff', // whats that?
+    caret: '#ffcc00',
+    selection: 'rgba(128, 203, 196, 0.5)',
+    selectionMatch: '#036dd626',
+    // lineHighlight: '#8a91991a', // original
+    lineHighlight: '#00000050',
+    gutterBackground: 'transparent',
+    // gutterForeground: '#8a919966',
+    gutterForeground: '#8a919966',
+  },
+  styles: [
+    { tag: t.keyword, color: '#c792ea' },
+    { tag: t.operator, color: '#89ddff' },
+    { tag: t.special(t.variableName), color: '#eeffff' },
+    // { tag: t.typeName, color: '#f07178' }, // original
+    { tag: t.typeName, color: '#c3e88d' },
+    { tag: t.atom, color: '#f78c6c' },
+    // { tag: t.number, color: '#ff5370' }, // original
+    { tag: t.number, color: '#c3e88d' },
+    { tag: t.definition(t.variableName), color: '#82aaff' },
+    { tag: t.string, color: '#c3e88d' },
+    //     { tag: t.special(t.string), color: '#f07178' }, // original
+    { tag: t.special(t.string), color: '#c3e88d' },
+    { tag: t.comment, color: '#7d8799' },
+    // { tag: t.variableName, color: '#f07178' }, // original
+    { tag: t.variableName, color: '#c792ea' },
+    // { tag: t.tagName, color: '#ff5370' }, // original
+    { tag: t.tagName, color: '#c3e88d' },
+    { tag: t.bracket, color: '#525154' },
+    // { tag: t.bracket, color: '#a2a1a4' }, // original
+    { tag: t.meta, color: '#ffcb6b' },
+    { tag: t.attributeName, color: '#c792ea' },
+    { tag: t.propertyName, color: '#c792ea' },
+
+    { tag: t.className, color: '#decb6b' },
+    { tag: t.invalid, color: '#ffffff' },
+    { tag: [t.unit, t.punctuation], color: '#82aaff' },
+  ],
+});

packages/codemirror/themes/teletext.mjs

@@ -0,0 +1,50 @@
+import { tags as t } from '@lezer/highlight';
+import { createTheme } from '@uiw/codemirror-themes';
+
+let colorA = '#6edee4';
+//let colorB = 'magenta';
+let colorB = 'white';
+let colorC = 'red';
+let colorD = '#f8fc55';
+
+export const settings = {
+  background: '#000000',
+  foreground: colorA, // whats that?
+  caret: colorC,
+  selection: colorD,
+  selectionMatch: colorA,
+  lineHighlight: '#6edee440', // panel bg
+  lineBackground: '#00000040',
+  gutterBackground: 'transparent',
+  gutterForeground: '#8a919966',
+  customStyle: '.cm-line { line-height: 1 }',
+};
+
+let punctuation = colorD;
+let mini = colorB;
+
+export default createTheme({
+  theme: 'dark',
+  settings,
+  styles: [
+    { tag: t.keyword, color: colorA },
+    { tag: t.operator, color: mini },
+    { tag: t.special(t.variableName), color: colorA },
+    { tag: t.typeName, color: colorA },
+    { tag: t.atom, color: colorA },
+    { tag: t.number, color: mini },
+    { tag: t.definition(t.variableName), color: colorA },
+    { tag: t.string, color: mini },
+    { tag: t.special(t.string), color: mini },
+    { tag: t.comment, color: punctuation },
+    { tag: t.variableName, color: colorA },
+    { tag: t.tagName, color: colorA },
+    { tag: t.bracket, color: punctuation },
+    { tag: t.meta, color: colorA },
+    { tag: t.attributeName, color: colorA },
+    { tag: t.propertyName, color: colorA }, // methods
+    { tag: t.className, color: colorA },
+    { tag: t.invalid, color: colorC },
+    { tag: [t.unit, t.punctuation], color: punctuation },
+  ],
+});

packages/codemirror/themes/terminal.mjs

@@ -0,0 +1,36 @@
+import { tags as t } from '@lezer/highlight';
+import { createTheme } from '@uiw/codemirror-themes';
+export const settings = {
+  background: 'black',
+  foreground: '#41FF00', // whats that?
+  caret: '#41FF00',
+  selection: '#ffffff20',
+  selectionMatch: '#036dd626',
+  lineHighlight: '#ffffff10',
+  gutterBackground: 'transparent',
+  gutterForeground: '#8a919966',
+};
+export default createTheme({
+  theme: 'dark',
+  settings,
+  styles: [
+    { tag: t.keyword, color: '#41FF00' },
+    { tag: t.operator, color: '#41FF00' },
+    { tag: t.special(t.variableName), color: '#41FF00' },
+    { tag: t.typeName, color: '#41FF00' },
+    { tag: t.atom, color: '#41FF00' },
+    { tag: t.number, color: '#41FF00' },
+    { tag: t.definition(t.variableName), color: '#41FF00' },
+    { tag: t.string, color: '#41FF00' },
+    { tag: t.special(t.string), color: '#41FF00' },
+    { tag: t.comment, color: '#41FF00' },
+    { tag: t.variableName, color: '#41FF00' },
+    { tag: t.tagName, color: '#41FF00' },
+    { tag: t.bracket, color: '#41FF00' },
+    { tag: t.meta, color: '#41FF00' },
+    { tag: t.attributeName, color: '#41FF00' },
+    { tag: t.propertyName, color: '#41FF00' },
+    { tag: t.className, color: '#41FF00' },
+    { tag: t.invalid, color: '#41FF00' },
+  ],
+});

packages/codemirror/themes/whitescreen.mjs

@@ -0,0 +1,38 @@
+import { tags as t } from '@lezer/highlight';
+import { createTheme } from '@uiw/codemirror-themes';
+export const settings = {
+  background: 'white',
+  foreground: 'black', // whats that?
+  caret: 'black',
+  selection: 'rgba(128, 203, 196, 0.5)',
+  selectionMatch: '#ffffff26',
+  lineHighlight: '#cccccc50',
+  lineBackground: '#ffffff50',
+  gutterBackground: 'transparent',
+  gutterForeground: 'black',
+  light: true,
+};
+export default createTheme({
+  theme: 'light',
+  settings,
+  styles: [
+    { tag: t.keyword, color: 'black' },
+    { tag: t.operator, color: 'black' },
+    { tag: t.special(t.variableName), color: 'black' },
+    { tag: t.typeName, color: 'black' },
+    { tag: t.atom, color: 'black' },
+    { tag: t.number, color: 'black' },
+    { tag: t.definition(t.variableName), color: 'black' },
+    { tag: t.string, color: 'black' },
+    { tag: t.special(t.string), color: 'black' },
+    { tag: t.comment, color: 'black' },
+    { tag: t.variableName, color: 'black' },
+    { tag: t.tagName, color: 'black' },
+    { tag: t.bracket, color: 'black' },
+    { tag: t.meta, color: 'black' },
+    { tag: t.attributeName, color: 'black' },
+    { tag: t.propertyName, color: 'black' },
+    { tag: t.className, color: 'black' },
+    { tag: t.invalid, color: 'black' },
+  ],
+});

packages/codemirror/tooltip.mjs

@@ -0,0 +1,78 @@
+import { hoverTooltip } from '@codemirror/view';
+import jsdoc from '../../doc.json';
+import { Autocomplete } from './autocomplete.mjs';
+
+const getDocLabel = (doc) => doc.name || doc.longname;
+
+let ctrlDown = false;
+
+if (typeof window !== 'undefined') {
+  // Record Control key event to trigger or block the tooltip depending on the state
+  window.addEventListener(
+    'keyup',
+    function (e) {
+      if (e.key == 'Control') {
+        ctrlDown = false;
+      }
+    },
+    true,
+  );
+
+  window.addEventListener(
+    'keydown',
+    function (e) {
+      if (e.key == 'Control') {
+        ctrlDown = true;
+      }
+    },
+    true,
+  );
+}
+
+export const strudelTooltip = hoverTooltip(
+  (view, pos, side) => {
+    // Word selection from CodeMirror Hover Tooltip example https://codemirror.net/examples/tooltip/#hover-tooltips
+    if (!ctrlDown) {
+      return null;
+    }
+    let { from, to, text } = view.state.doc.lineAt(pos);
+    let start = pos,
+      end = pos;
+    while (start > from && /\w/.test(text[start - from - 1])) {
+      start--;
+    }
+    while (end < to && /\w/.test(text[end - from])) {
+      end++;
+    }
+    if ((start == pos && side < 0) || (end == pos && side > 0)) {
+      return null;
+    }
+    let word = text.slice(start - from, end - from);
+    // Get entry from Strudel documentation
+    let entry = jsdoc.docs.filter((doc) => getDocLabel(doc) === word)[0];
+    if (!entry) {
+      // Try for synonyms
+      entry = jsdoc.docs.filter((doc) => doc.synonyms && doc.synonyms.includes(word))[0];
+      if (!entry) {
+        return null;
+      }
+    }
+
+    return {
+      pos: start,
+      end,
+      above: false,
+      arrow: true,
+      create(view) {
+        let dom = document.createElement('div');
+        dom.className = 'strudel-tooltip';
+        const ac = Autocomplete({ doc: entry, label: word });
+        dom.appendChild(ac);
+        return { dom };
+      },
+    };
+  },
+  { hoverTime: 10 },
+);
+
+export const isTooltipEnabled = (on) => (on ? strudelTooltip : []);

packages/codemirror/vite.config.js

@@ -0,0 +1,19 @@
+import { defineConfig } from 'vite';
+import { dependencies } from './package.json';
+import { resolve } from 'path';
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  plugins: [],
+  build: {
+    lib: {
+      entry: resolve(__dirname, 'index.mjs'),
+      formats: ['es'],
+      fileName: (ext) => ({ es: 'index.mjs' })[ext],
+    },
+    rollupOptions: {
+      external: [...Object.keys(dependencies)],
+    },
+    target: 'esnext',
+  },
+});

packages/core/.npmignore

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

packages/core/README.md

@@ -1,17 +1,17 @@
-# @strudel.cycles/core
+# @strudel/core
 
 This package contains the bare essence of strudel.
 
 ## Install
 
 ```sh
-npm i @strudel.cycles/core --save
+npm i @strudel/core --save
 ```
 
 ## Example
 
 ```js
-import { sequence } from '@strudel.cycles/core';
+import { sequence } from '@strudel/core';
 
 const pattern = sequence('a', ['b', 'c']);
 
@@ -33,6 +33,7 @@ b: 3/2 - 7/4
 c: 7/4 - 2
 ```
 
-- [play with @strudel.cycles/core on codesandbox](https://codesandbox.io/s/strudel-core-test-qmz6qr?file=/src/index.js).
-- [open color pattern example](https://raw.githack.com/tidalcycles/strudel/package-examples/packages/core/examples/canvas.html)
-- [open minimal repl example](https://raw.githack.com/tidalcycles/strudel/package-examples/packages/core/examples/metro.html)
+- [play with @strudel/core on codesandbox](https://codesandbox.io/s/strudel-core-test-forked-9ywhv7?file=/src/index.js).
+- [open color pattern example](https://raw.githack.com/tidalcycles/strudel/main/packages/core/examples/canvas.html)
+- [open minimal repl example](https://raw.githack.com/tidalcycles/strudel/main/packages/core/examples/vanilla.html)
+- [open minimal vite example](./examples/vite-vanilla-repl/)

packages/core/animate.mjs

@@ -0,0 +1,68 @@
+import { Pattern, getDrawContext, silence, register, pure } from './index.mjs';
+import controls from './controls.mjs'; // do not import from index.mjs as it breaks for some reason..
+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, angle = 0, fill = 'darkseagreen' } = f.value;
+      w *= ww;
+      h *= wh;
+      if (r !== undefined && angle !== undefined) {
+        const radians = angle * 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, angle, r, fill, smear } = createParams('x', 'y', 'w', 'h', 'angle', '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/cyclist.mjs

@@ -0,0 +1,110 @@
+/*
+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 = 0.5;
+    this.num_ticks_since_cps_change = 0;
+    this.lastTick = 0; // absolute time when last tick (clock callback) happened
+    this.lastBegin = 0; // query begin of last tick
+    this.lastEnd = 0; // query end of last tick
+    this.getTime = getTime; // get absolute time
+    this.num_cycles_since_last_cps_change = 0;
+    this.onToggle = onToggle;
+    this.latency = latency; // fixed trigger time offset
+    this.clock = createClock(
+      getTime,
+      // called slightly before each cycle
+      (phase, duration, tick) => {
+        if (tick === 0) {
+          this.origin = phase;
+        }
+        if (this.num_ticks_since_cps_change === 0) {
+          this.num_cycles_since_last_cps_change = this.lastEnd;
+        }
+        this.num_ticks_since_cps_change++;
+        try {
+          const time = getTime();
+          const begin = this.lastEnd;
+          this.lastBegin = begin;
+
+          //convert ticks to cycles, so you can query the pattern for events
+          const eventLength = duration * this.cps;
+          const end = this.num_cycles_since_last_cps_change + this.num_ticks_since_cps_change * eventLength;
+          this.lastEnd = end;
+
+          // query the pattern for events
+          const haps = this.pattern.queryArc(begin, end, { _cps: this.cps });
+
+          const tickdeadline = phase - time; // time left until the phase is a whole number
+          this.lastTick = time + tickdeadline;
+
+          haps.forEach((hap) => {
+            if (hap.part.begin.equals(hap.whole.begin)) {
+              const deadline = (hap.whole.begin - begin) / this.cps + tickdeadline + latency;
+              const duration = hap.duration / this.cps;
+              onTrigger?.(hap, deadline, duration, this.cps);
+            }
+          });
+        } catch (e) {
+          logger(`[cyclist] error: ${e.message}`);
+          onError?.(e);
+        }
+      },
+      interval, // duration of each cycle
+    );
+  }
+  now() {
+    const secondsSinceLastTick = this.getTime() - this.lastTick - this.clock.duration;
+    return this.lastBegin + secondsSinceLastTick * this.cps; // + this.clock.minLatency;
+  }
+  setStarted(v) {
+    this.started = v;
+    this.onToggle?.(v);
+  }
+  start() {
+    this.num_ticks_since_cps_change = 0;
+    this.num_cycles_since_last_cps_change = 0;
+    if (!this.pattern) {
+      throw new Error('Scheduler: no pattern set! call .setPattern first.');
+    }
+    logger('[cyclist] start');
+    this.clock.start();
+    this.setStarted(true);
+  }
+  pause() {
+    logger('[cyclist] pause');
+    this.clock.pause();
+    this.setStarted(false);
+  }
+  stop() {
+    logger('[cyclist] stop');
+    this.clock.stop();
+    this.lastEnd = 0;
+    this.setStarted(false);
+  }
+  setPattern(pat, autostart = false) {
+    this.pattern = pat;
+    if (autostart && !this.started) {
+      this.start();
+    }
+  }
+  setCps(cps = 0.5) {
+    if (this.cps === cps) {
+      return;
+    }
+    this.cps = cps;
+    this.num_ticks_since_cps_change = 0;
+  }
+  log(begin, end, haps) {
+    const onsets = haps.filter((h) => h.hasOnset());
+    console.log(`${begin.toFixed(4)} - ${end.toFixed(4)} ${Array(onsets.length).fill('I').join('')}`);
+  }
+}

packages/core/draw.mjs

@@ -0,0 +1,177 @@
+/*
+draw.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/draw.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, getTime, State, TimeSpan } from './index.mjs';
+
+export const getDrawContext = (id = 'test-canvas') => {
+  let canvas = document.querySelector('#' + id);
+  if (!canvas) {
+    const scale = 2; // 2 = crisp on retina screens
+    canvas = document.createElement('canvas');
+    canvas.id = id;
+    canvas.width = window.innerWidth * scale;
+    canvas.height = window.innerHeight * scale;
+    canvas.style = 'pointer-events:none;width:100%;height:100%;position:fixed;top:0;left:0';
+    document.body.prepend(canvas);
+    let timeout;
+    window.addEventListener('resize', () => {
+      timeout && clearTimeout(timeout);
+      timeout = setTimeout(() => {
+        canvas.width = window.innerWidth * scale;
+        canvas.height = window.innerHeight * scale;
+      }, 200);
+    });
+  }
+  return canvas.getContext('2d');
+};
+
+Pattern.prototype.draw = function (callback, { from, to, onQuery } = {}) {
+  if (typeof window === 'undefined') {
+    return this;
+  }
+  if (window.strudelAnimation) {
+    cancelAnimationFrame(window.strudelAnimation);
+  }
+  const ctx = getDrawContext();
+  let cycle,
+    events = [];
+  const animate = (time) => {
+    const t = getTime();
+    if (from !== undefined && to !== undefined) {
+      const currentCycle = Math.floor(t);
+      if (cycle !== currentCycle) {
+        cycle = currentCycle;
+        const begin = currentCycle + from;
+        const end = currentCycle + to;
+        setTimeout(() => {
+          events = this.query(new State(new TimeSpan(begin, end)))
+            .filter(Boolean)
+            .filter((event) => event.part.begin.equals(event.whole.begin));
+          onQuery?.(events);
+        }, 0);
+      }
+    }
+    callback(ctx, events, t, time);
+    window.strudelAnimation = requestAnimationFrame(animate);
+  };
+  requestAnimationFrame(animate);
+  return this;
+};
+
+export const cleanupDraw = (clearScreen = true) => {
+  const ctx = getDrawContext();
+  clearScreen && ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.width);
+  if (window.strudelAnimation) {
+    cancelAnimationFrame(window.strudelAnimation);
+  }
+  if (window.strudelScheduler) {
+    clearInterval(window.strudelScheduler);
+  }
+};
+
+Pattern.prototype.onPaint = function (onPaint) {
+  // this is evil! TODO: add pattern.context
+  this.context = { onPaint };
+  return this;
+};
+
+// const round = (x) => Math.round(x * 1000) / 1000;
+
+// encapsulates starting and stopping animation frames
+export class Framer {
+  constructor(onFrame, onError) {
+    this.onFrame = onFrame;
+    this.onError = onError;
+  }
+  start() {
+    const self = this;
+    let frame = requestAnimationFrame(function updateHighlights(time) {
+      try {
+        self.onFrame(time);
+      } catch (err) {
+        self.onError(err);
+      }
+      frame = requestAnimationFrame(updateHighlights);
+    });
+    self.cancel = () => {
+      cancelAnimationFrame(frame);
+    };
+  }
+  stop() {
+    if (this.cancel) {
+      this.cancel();
+    }
+  }
+}
+
+// syncs animation frames to a cyclist scheduler
+// see vite-vanilla-repl-cm6 for an example
+export class Drawer {
+  constructor(onDraw, drawTime) {
+    this.visibleHaps = [];
+    this.lastFrame = null;
+    this.drawTime = drawTime;
+    this.framer = new Framer(
+      () => {
+        if (!this.scheduler) {
+          console.warn('Drawer: no scheduler');
+          return;
+        }
+        const lookbehind = Math.abs(this.drawTime[0]);
+        const lookahead = this.drawTime[1];
+        // calculate current frame time (think right side of screen for pianoroll)
+        const phase = this.scheduler.now() + lookahead;
+        // first frame just captures the phase
+        if (this.lastFrame === null) {
+          this.lastFrame = phase;
+          return;
+        }
+        // query haps from last frame till now. take last 100ms max
+        const haps = this.scheduler.pattern.queryArc(Math.max(this.lastFrame, phase - 1 / 10), phase);
+        this.lastFrame = phase;
+        this.visibleHaps = (this.visibleHaps || [])
+          // filter out haps that are too far in the past (think left edge of screen for pianoroll)
+          .filter((h) => h.whole?.end >= phase - lookbehind - lookahead)
+          // add new haps with onset (think right edge bars scrolling in)
+          .concat(haps.filter((h) => h.hasOnset()));
+        const time = phase - lookahead;
+        onDraw(this.visibleHaps, time, this);
+      },
+      (err) => {
+        console.warn('draw error', err);
+      },
+    );
+  }
+  setDrawTime(drawTime) {
+    this.drawTime = drawTime;
+  }
+  invalidate(scheduler = this.scheduler, t) {
+    if (!scheduler) {
+      return;
+    }
+    // TODO: scheduler.now() seems to move even when it's stopped, this hints at a bug...
+    t = t ?? scheduler.now();
+    this.scheduler = scheduler;
+    let [_, lookahead] = this.drawTime;
+    const [begin, end] = [Math.max(t, 0), t + lookahead + 0.1];
+    // remove all future haps
+    this.visibleHaps = this.visibleHaps.filter((h) => h.whole.begin < t);
+    // query future haps
+    const futureHaps = scheduler.pattern.queryArc(begin, end); // +0.1 = workaround for weird holes in query..
+    // append future haps
+    this.visibleHaps = this.visibleHaps.concat(futureHaps);
+  }
+  start(scheduler) {
+    this.scheduler = scheduler;
+    this.invalidate();
+    this.framer.start();
+  }
+  stop() {
+    if (this.framer) {
+      this.framer.stop();
+    }
+  }
+}

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 +1,185 @@
 /*
-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, splitAt, zipWith } from './util.mjs';
 import Fraction from './fraction.mjs';
 
-const euclid = (pulses, steps, rotation = 0) => {
-  const b = bjork(steps, pulses);
+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;
 };
 
+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));
+});
+
 /**
- * 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.
- *
+ * Similar to `euclid`, but each pulse is held until the next pulse,
+ * so there will be no gaps.
+ * @name euclidLegato
  * @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)
+ * @example
+ * note("c3").euclidLegato(3,8)
  */
-Pattern.prototype.euclid = function (pulses, steps, rotation = 0) {
-  return this.struct(euclid(pulses, steps, rotation));
-};
 
-/**
- * Similar to {@link Pattern#euclid}, but each pulse is held until the next pulse, so there will be no gaps.
- */
-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);
+});
+
+/**
+ * Similar to `euclid`, but each pulse is held until the next pulse,
+ * so there will be no gaps, and has an additional parameter for 'rotating'
+ * the resulting sequence
+ * @name euclidLegatoRot
+ * @memberof Pattern
+ * @param {number} pulses the number of onsets / beats
+ * @param {number} steps the number of steps to fill
+ * @param {number} rotation offset in steps
+ * @example
+ * note("c3").euclidLegatoRot(3,5,2)
+ */
+export const euclidLegatoRot = register(['euclidLegatoRot'], function (pulses, steps, rotation, pat) {
+  return _euclidLegato(pulses, steps, rotation, pat);
+});

packages/core/evaluate.mjs

@@ -0,0 +1,51 @@
+/*
+evaluate.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/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';
+
+export const evalScope = async (...args) => {
+  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) => {
+  let meta = {};
+  if (transpiler) {
+    // transform syntactically correct js code to semantically usable code
+    const transpiled = transpiler(code);
+    code = transpiled.output;
+    meta = transpiled;
+  }
+  // if no transpiler is given, we expect a single instruction (!wrapExpression)
+  const options = { wrapExpression: !!transpiler };
+  let evaluated = await safeEval(code, options);
+  return { mode: 'javascript', pattern: evaluated, meta };
+};

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/gist.js

@@ -1,12 +0,0 @@
-/*
-gist.js - <short description TODO>
-Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/gist.js>
-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/>.
-*/
-
-// this is a shortcut to eval code from a gist
-// why? to be able to shorten strudel code + e.g. be able to change instruments after links have been generated
-export default (route) =>
-  fetch(`https://gist.githubusercontent.com/${route}?cachebust=${Date.now()}`)
-    .then((res) => res.text())
-    .then((code) => eval(code));

packages/core/hap.mjs

@@ -32,7 +32,11 @@ export class Hap {
   }
 
   get duration() {
-    return this.whole.end.sub(this.whole.begin);
+    return this.whole.end.sub(this.whole.begin).mul(typeof this.value?.clip === 'number' ? this.value?.clip : 1);
+  }
+
+  get endClipped() {
+    return this.whole.begin.add(this.duration);
   }
 
   wholeOrPart() {
@@ -79,15 +83,42 @@ 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
     }`;
   }
 
@@ -99,6 +130,19 @@ export class Hap {
   setContext(context) {
     return new Hap(this.whole, this.part, this.value, context);
   }
+
+  ensureObjectValue() {
+    /* if (isNote(hap.value)) {
+      // supports primitive hap values that look like notes
+      hap.value = { note: hap.value };
+    } */
+    if (typeof this.value !== 'object') {
+      throw new Error(
+        `expected hap.value to be an object, but got "${this.value}". Hint: append .note() or .s() to the end`,
+        'error',
+      );
+    }
+  }
 }
 
 export default Hap;

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';
@@ -15,5 +16,26 @@ export * from './state.mjs';
 export * from './timespan.mjs';
 export * from './util.mjs';
 export * from './speak.mjs';
-export * as gist from './gist.js';
-// export * from './value.mjs';
+export * from './evaluate.mjs';
+export * from './repl.mjs';
+export * from './cyclist.mjs';
+export * from './logger.mjs';
+export * from './time.mjs';
+export * from './draw.mjs';
+export * from './animate.mjs';
+export * from './pianoroll.mjs';
+export * from './spiral.mjs';
+export * from './ui.mjs';
+export { default as drawLine } from './drawLine.mjs';
+// below won't work with runtime.mjs (json import fails)
+/* import * as p from './package.json';
+export const version = p.version; */
+logger('🌀 @strudel/core loaded 🌀');
+if (globalThis._strudelLoaded) {
+  console.warn(
+    `@strudel/core was loaded more than once...
+This might happen when you have multiple versions of strudel installed. 
+Please check with "npm ls @strudel/core".`,
+  );
+}
+globalThis._strudelLoaded = true;

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.json

@@ -1,11 +1,16 @@
 {
-  "name": "@strudel.cycles/core",
-  "version": "0.1.0",
+  "name": "@strudel/core",
+  "version": "1.0.1",
   "description": "Port of Tidal Cycles to JavaScript",
   "main": "index.mjs",
   "type": "module",
+  "publishConfig": {
+    "main": "dist/index.mjs"
+  },
   "scripts": {
-    "test": "mocha --colors"
+    "test": "vitest run",
+    "build": "vite build",
+    "prepublishOnly": "pnpm build"
   },
   "repository": {
     "type": "git",
@@ -23,13 +28,13 @@
   "bugs": {
     "url": "https://github.com/tidalcycles/strudel/issues"
   },
-  "homepage": "https://strudel.tidalcycles.org",
+  "homepage": "https://strudel.cc",
   "dependencies": {
-    "bjork": "^0.0.1",
-    "fraction.js": "^4.2.0"
+    "fraction.js": "^4.3.7"
   },
+  "gitHead": "0e26d4e741500f5bae35b023608f062a794905c2",
   "devDependencies": {
-    "mocha": "^9.2.2"
-  },
-  "gitHead": "0e26d4e741500f5bae35b023608f062a794905c2"
+    "vite": "^5.0.10",
+    "vitest": "^1.1.0"
+  }
 }

packages/core/pianoroll.mjs

@@ -0,0 +1,292 @@
+/*
+pianoroll.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/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, noteToMidi, 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 noteToMidi(note);
+  }
+  if (typeof note === 'number') {
+    return note;
+  }
+  if (s) {
+    return '_' + s;
+  }
+  return value;
+};
+
+Pattern.prototype.pianoroll = function (options = {}) {
+  let { cycles = 4, playhead = 0.5, overscan = 1, hideNegative = false } = options;
+
+  let from = -cycles * playhead;
+  let to = cycles * (1 - playhead);
+
+  this.draw(
+    (ctx, haps, t) => {
+      const inFrame = (event) =>
+        (!hideNegative || event.whole.begin >= 0) && event.whole.begin <= t + to && event.endClipped >= t + from;
+      pianoroll({
+        ...options,
+        time: t,
+        ctx,
+        haps: haps.filter(inFrame),
+      });
+    },
+    {
+      from: from - overscan,
+      to: to + overscan,
+    },
+  );
+  return this;
+};
+
+// this function allows drawing a pianoroll without ties to Pattern.prototype
+// it will probably replace the above in the future
+
+/**
+ * Displays a midi-style piano roll
+ *
+ * @name pianoroll
+ * @param {Object} options Object containing all the optional following parameters as key value pairs:
+ * @param {integer} cycles number of cycles to be displayed at the same time - defaults to 4
+ * @param {number} playhead location of the active notes on the time axis - 0 to 1, defaults to 0.5
+ * @param {boolean} vertical displays the roll vertically - 0 by default
+ * @param {boolean} labels displays labels on individual notes (see the label function) - 0 by default
+ * @param {boolean} flipTime reverse the direction of the roll - 0 by default
+ * @param {boolean} flipValues reverse the relative location of notes on the value axis - 0 by default
+ * @param {number} overscan lookup X cycles outside of the cycles window to display notes in advance - 1 by default
+ * @param {boolean} hideNegative hide notes with negative time (before starting playing the pattern) - 0 by default
+ * @param {boolean} smear notes leave a solid trace - 0 by default
+ * @param {boolean} fold notes takes the full value axis width - 0 by default
+ * @param {string} active hexadecimal or CSS color of the active notes - defaults to #FFCA28
+ * @param {string} inactive hexadecimal or CSS color of the inactive notes - defaults to #7491D2
+ * @param {string} background hexadecimal or CSS color of the background - defaults to transparent
+ * @param {string} playheadColor hexadecimal or CSS color of the line representing the play head - defaults to white
+ * @param {boolean} fill notes are filled with color (otherwise only the label is displayed) - 0 by default
+ * @param {boolean} fillActive active notes are filled with color - 0 by default
+ * @param {boolean} stroke notes are shown with colored borders - 0 by default
+ * @param {boolean} strokeActive active notes are shown with colored borders - 0 by default
+ * @param {boolean} hideInactive only active notes are shown - 0 by default
+ * @param {boolean} colorizeInactive use note color for inactive notes - 1 by default
+ * @param {string} fontFamily define the font used by notes labels - defaults to 'monospace'
+ * @param {integer} minMidi minimum note value to display on the value axis - defaults to 10
+ * @param {integer} maxMidi maximum note value to display on the value axis - defaults to 90
+ * @param {boolean} autorange automatically calculate the minMidi and maxMidi parameters - 0 by default
+ *
+ * @example
+ * note("C2 A2 G2").euclid(5,8).s('piano').clip(1).color('salmon').pianoroll({vertical:1, labels:1})
+ */
+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,
+  labels = false,
+  fill = 1,
+  fillActive = false,
+  strokeActive = true,
+  stroke,
+  hideInactive = 0,
+  colorizeInactive = 1,
+  fontFamily,
+  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) =>
+    typeof a === 'number' && typeof b === 'number'
+      ? a - b
+      : typeof a === 'number'
+        ? 1
+        : 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);
+  }
+  haps.forEach((event) => {
+    const isActive = event.whole.begin <= time && event.endClipped > time;
+    let strokeCurrent = stroke ?? (strokeActive && isActive);
+    let fillCurrent = (!isActive && fill) || (isActive && fillActive);
+    if (hideInactive && !isActive) {
+      return;
+    }
+    let color = event.value?.color || event.context?.color;
+    active = color || active;
+    inactive = colorizeInactive ? color || inactive : inactive;
+    color = isActive ? active : inactive;
+    ctx.fillStyle = fillCurrent ? color : 'transparent';
+    ctx.strokeStyle = color;
+    ctx.globalAlpha = event.context.velocity ?? event.value?.gain ?? 1;
+    const timeProgress = (event.whole.begin - (flipTime ? to : from)) / timeExtent;
+    const timePx = scale(timeProgress, ...timeRange);
+    let durationPx = scale(event.duration / timeExtent, 0, timeAxis);
+    const value = getValue(event);
+    const valueProgress = fold
+      ? foldValues.indexOf(value) / foldValues.length
+      : (Number(value) - minMidi) / valueExtent;
+    const valuePx = scale(valueProgress, ...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
+      ];
+    }
+    /* const xFactor = Math.sin(performance.now() / 500) + 1;
+      coords[0] *= xFactor; */
+
+    if (strokeCurrent) {
+      ctx.strokeRect(...coords);
+    }
+    if (fillCurrent) {
+      ctx.fillRect(...coords);
+    }
+    //ctx.ellipse(...ellipseFromRect(...coords))
+    if (labels) {
+      const defaultLabel = event.value.note ?? event.value.s + (event.value.n ? `:${event.value.n}` : '');
+      const { label: inactiveLabel, activeLabel } = event.value;
+      const customLabel = isActive ? activeLabel || inactiveLabel : inactiveLabel;
+      const label = customLabel ?? defaultLabel;
+      let measure = vertical ? durationPx : barThickness * 0.75;
+      ctx.font = `${measure}px ${fontFamily || 'monospace'}`;
+      // font color
+      ctx.fillStyle = /* isActive &&  */ !fillCurrent ? color : 'black';
+      ctx.textBaseline = 'top';
+      ctx.fillText(label, ...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;
+}
+
+export function getDrawOptions(drawTime, options = {}) {
+  let [lookbehind, lookahead] = drawTime;
+  lookbehind = Math.abs(lookbehind);
+  const cycles = lookahead + lookbehind;
+  const playhead = lookbehind / cycles;
+  return { fold: 1, ...options, cycles, playhead };
+}
+
+export const getPunchcardPainter =
+  (options = {}) =>
+  (ctx, time, haps, drawTime, paintOptions = {}) =>
+    pianoroll({ ctx, time, haps, ...getDrawOptions(drawTime, { ...paintOptions, ...options }) });
+
+Pattern.prototype.punchcard = function (options) {
+  return this.onPaint(getPunchcardPainter(options));
+};
+
+/**
+ * Displays a vertical pianoroll with event labels.
+ * Supports all the same options as pianoroll.
+ *
+ * @name wordfall
+ */
+Pattern.prototype.wordfall = function (options) {
+  return this.punchcard({ vertical: 1, labels: 1, stroke: 0, fillActive: 1, active: 'white', ...options });
+};
+
+/* Pattern.prototype.pianoroll = function (options) {
+  return this.onPaint((ctx, time, haps, drawTime) =>
+    pianoroll({ ctx, time, haps, ...getDrawOptions(drawTime, { fold: 0, ...options }) }),
+  );
+}; */
+
+export function drawPianoroll(options) {
+  const { drawTime, ...rest } = options;
+  pianoroll({ ...getDrawOptions(drawTime), ...rest });
+}

packages/core/repl.mjs

@@ -0,0 +1,175 @@
+import { Cyclist } from './cyclist.mjs';
+import { evaluate as _evaluate } from './evaluate.mjs';
+import { logger } from './logger.mjs';
+import { setTime } from './time.mjs';
+import { evalScope } from './evaluate.mjs';
+import { register, Pattern, isPattern, silence, stack } from './pattern.mjs';
+
+export function repl({
+  interval,
+  defaultOutput,
+  onSchedulerError,
+  onEvalError,
+  beforeEval,
+  afterEval,
+  getTime,
+  transpiler,
+  onToggle,
+  editPattern,
+  onUpdateState,
+}) {
+  const state = {
+    schedulerError: undefined,
+    evalError: undefined,
+    code: '// LOADING',
+    activeCode: '// LOADING',
+    pattern: undefined,
+    miniLocations: [],
+    widgets: [],
+    pending: false,
+    started: false,
+  };
+
+  const updateState = (update) => {
+    Object.assign(state, update);
+    state.isDirty = state.code !== state.activeCode;
+    state.error = state.evalError || state.schedulerError;
+    onUpdateState?.(state);
+  };
+
+  const scheduler = new Cyclist({
+    interval,
+    onTrigger: getTrigger({ defaultOutput, getTime }),
+    onError: onSchedulerError,
+    getTime,
+    onToggle: (started) => {
+      updateState({ started });
+      onToggle?.(started);
+    },
+  });
+  let pPatterns = {};
+  let allTransform;
+
+  const hush = function () {
+    pPatterns = {};
+    allTransform = undefined;
+    return silence;
+  };
+
+  const setPattern = (pattern, autostart = true) => {
+    pattern = editPattern?.(pattern) || pattern;
+    scheduler.setPattern(pattern, autostart);
+  };
+  setTime(() => scheduler.now()); // TODO: refactor?
+
+  const stop = () => scheduler.stop();
+  const start = () => scheduler.start();
+  const pause = () => scheduler.pause();
+  const toggle = () => scheduler.toggle();
+  const setCps = (cps) => scheduler.setCps(cps);
+  const setCpm = (cpm) => scheduler.setCps(cpm / 60);
+  const all = function (transform) {
+    allTransform = transform;
+    return silence;
+  };
+
+  // set pattern methods that use this repl via closure
+  const injectPatternMethods = () => {
+    Pattern.prototype.p = function (id) {
+      pPatterns[id] = this;
+      return this;
+    };
+    Pattern.prototype.q = function (id) {
+      return silence;
+    };
+    try {
+      for (let i = 1; i < 10; ++i) {
+        Object.defineProperty(Pattern.prototype, `d${i}`, {
+          get() {
+            return this.p(i);
+          },
+          configurable: true,
+        });
+        Object.defineProperty(Pattern.prototype, `p${i}`, {
+          get() {
+            return this.p(i);
+          },
+          configurable: true,
+        });
+        Pattern.prototype[`q${i}`] = silence;
+      }
+    } catch (err) {
+      console.warn('injectPatternMethods: error:', err);
+    }
+    const cpm = register('cpm', function (cpm, pat) {
+      return pat._fast(cpm / 60 / scheduler.cps);
+    });
+    evalScope({
+      all,
+      hush,
+      cpm,
+      setCps,
+      setcps: setCps,
+      setCpm,
+      setcpm: setCpm,
+    });
+  };
+
+  const evaluate = async (code, autostart = true, shouldHush = true) => {
+    if (!code) {
+      throw new Error('no code to evaluate');
+    }
+    try {
+      updateState({ code, pending: true });
+      injectPatternMethods();
+      await beforeEval?.({ code });
+      shouldHush && hush();
+      let { pattern, meta } = await _evaluate(code, transpiler);
+      if (Object.keys(pPatterns).length) {
+        pattern = stack(...Object.values(pPatterns));
+      }
+      if (allTransform) {
+        pattern = allTransform(pattern);
+      }
+      if (!isPattern(pattern)) {
+        const message = `got "${typeof evaluated}" instead of pattern`;
+        throw new Error(message + (typeof evaluated === 'function' ? ', did you forget to call a function?' : '.'));
+      }
+      logger(`[eval] code updated`);
+      setPattern(pattern, autostart);
+      updateState({
+        miniLocations: meta?.miniLocations || [],
+        widgets: meta?.widgets || [],
+        activeCode: code,
+        pattern,
+        evalError: undefined,
+        schedulerError: undefined,
+        pending: false,
+      });
+      afterEval?.({ code, pattern, meta });
+      return pattern;
+    } catch (err) {
+      logger(`[eval] error: ${err.message}`, 'error');
+      updateState({ evalError: err, pending: false });
+      onEvalError?.(err);
+    }
+  };
+  const setCode = (code) => updateState({ code });
+  return { scheduler, evaluate, start, stop, pause, setCps, setPattern, setCode, toggle, state };
+}
+
+export const getTrigger =
+  ({ getTime, defaultOutput }) =>
+  async (hap, deadline, duration, cps) => {
+    try {
+      if (!hap.context.onTrigger || !hap.context.dominantTrigger) {
+        await defaultOutput(hap, deadline, duration, cps);
+      }
+      if (hap.context.onTrigger) {
+        // call signature of output / onTrigger is different...
+        await hap.context.onTrigger(getTime() + deadline, hap, getTime(), cps);
+      }
+    } catch (err) {
+      logger(`[cyclist] error: ${err.message}`, 'error');
+    }
+  };

packages/core/signal.mjs

@@ -5,9 +5,9 @@ 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';
+import { id, _mod, clamp, objectMap } from './util.mjs';
 
 export function steady(value) {
   // A continuous value
@@ -20,20 +20,22 @@ 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))
+ * note("<c3 [eb3,g3] g2 [g3,bb3]>*8")
+ * .clip(saw.slow(2))
  * @example
- * saw.range(0,8).segment(8).scale('C major').slow(4)
+ * n(saw.range(0,8).segment(8))
+ * .scale('C major')
  *
  */
 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 +44,41 @@ 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')
+ * n(sine.segment(16).range(0,15))
+ * .scale("C:minor")
  *
  */
-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')
+ * n(stack(sine,cosine).segment(16).range(0,15))
+ * .scale("C:minor")
  *
  */
 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')
+ * n(square.segment(4).range(0,7)).scale("C:minor")
  *
  */
 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')
+ * n(tri.segment(8).range(0,7)).scale("C:minor")
  *
  */
 export const tri = fastcat(isaw, saw);
@@ -103,6 +105,7 @@ const timeToRand = (x) => Math.abs(intSeedToRand(timeToIntSeed(x)));
 
 const timeToRandsPrime = (seed, n) => {
   const result = [];
+  // eslint-disable-next-line
   for (let i = 0; i < n; ++n) {
     result.push(intSeedToRand(seed));
     seed = xorwise(seed);
@@ -112,28 +115,263 @@ const timeToRandsPrime = (seed, n) => {
 
 const timeToRands = (t, n) => timeToRandsPrime(timeToIntSeed(t), n);
 
+/**
+ *
+ */
+
+/**
+ * A discrete pattern of numbers from 0 to n-1
+ * @example
+ * n(run(4)).scale("C4:pentatonic")
+ * // n("0 1 2 3").scale("C4:pentatonic")
+ */
+export const run = (n) => saw.range(0, n).floor().segment(n);
+
+/**
+ * A continuous pattern of random numbers, between 0 and 1.
+ *
+ * @name rand
+ * @example
+ * // randomly change the cutoff
+ * s("bd*4,hh*8").cutoff(rand.range(500,8000))
+ *
+ */
 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)
+ * n(irand(8)).struct("x x*2 x x*3").scale("C:minor")
+ *
+ */
 export const irand = (ipat) => reify(ipat).fmap(_irand).innerJoin();
 
-export const chooseWith = (pat, xs) => {
+const _pick = function (lookup, pat, modulo = true) {
+  const array = Array.isArray(lookup);
+  const len = Object.keys(lookup).length;
+
+  lookup = objectMap(lookup, reify);
+
+  if (len === 0) {
+    return silence;
+  }
+  return pat.fmap((i) => {
+    let key = i;
+    if (array) {
+      key = modulo ? Math.round(key) % len : clamp(Math.round(key), 0, lookup.length - 1);
+    }
+    return lookup[key];
+  });
+};
+
+/** * Picks patterns (or plain values) either from a list (by index) or a lookup table (by name).
+ * Similar to `inhabit`, but maintains the structure of the original patterns.
+ * @param {Pattern} pat
+ * @param {*} xs
+ * @returns {Pattern}
+ * @example
+ * note("<0 1 2!2 3>".pick(["g a", "e f", "f g f g" , "g c d"]))
+ * @example
+ * sound("<0 1 [2,0]>".pick(["bd sd", "cp cp", "hh hh"]))
+ * @example
+ * sound("<0!2 [0,1] 1>".pick(["bd(3,8)", "sd sd"]))
+ * @example
+ * s("<a!2 [a,b] b>".pick({a: "bd(3,8)", b: "sd sd"}))
+ */
+
+export const pick = function (lookup, pat) {
+  // backward compatibility - the args used to be flipped
+  if (Array.isArray(pat)) {
+    [pat, lookup] = [lookup, pat];
+  }
+  return __pick(lookup, pat);
+};
+
+const __pick = register('pick', function (lookup, pat) {
+  return _pick(lookup, pat, false).innerJoin();
+});
+
+/** * The same as `pick`, but if you pick a number greater than the size of the list,
+ * it wraps around, rather than sticking at the maximum value.
+ * For example, if you pick the fifth pattern of a list of three, you'll get the
+ * second one.
+ * @param {Pattern} pat
+ * @param {*} xs
+ * @returns {Pattern}
+ */
+
+export const pickmod = register('pickmod', function (lookup, pat) {
+  return _pick(lookup, pat, true).innerJoin();
+});
+
+/** * pickF lets you use a pattern of numbers to pick which function to apply to another pattern.
+ * @param {Pattern} pat
+ * @param {Pattern} lookup a pattern of indices
+ * @param {function[]} funcs the array of functions from which to pull
+ * @returns {Pattern}
+ * @example
+ * s("bd [rim hh]").pickF("<0 1 2>", [rev,jux(rev),fast(2)])
+ * @example
+ * note("<c2 d2>(3,8)").s("square")
+ *     .pickF("<0 2> 1", [jux(rev),fast(2),x=>x.lpf(800)])
+ */
+export const pickF = register('pickF', function (lookup, funcs, pat) {
+  return pat.apply(pick(lookup, funcs));
+});
+
+/** * The same as `pickF`, but if you pick a number greater than the size of the functions list,
+ * it wraps around, rather than sticking at the maximum value.
+ * @param {Pattern} pat
+ * @param {Pattern} lookup a pattern of indices
+ * @param {function[]} funcs the array of functions from which to pull
+ * @returns {Pattern}
+ */
+export const pickmodF = register('pickmodF', function (lookup, funcs, pat) {
+  return pat.apply(pickmod(lookup, funcs));
+});
+
+/**
+/** * Picks patterns (or plain values) either from a list (by index) or a lookup table (by name).
+ * Similar to `pick`, but cycles are squeezed into the target ('inhabited') pattern.
+ * @param {Pattern} pat
+ * @param {*} xs
+ * @returns {Pattern}
+ * @example
+ * "<a b [a,b]>".inhabit({a: s("bd(3,8)"),
+                          b: s("cp sd")
+                         })
+ * @example
+ * s("a@2 [a b] a".inhabit({a: "bd(3,8)", b: "sd sd"})).slow(4)
+ */
+export const inhabit = register('inhabit', function (lookup, pat) {
+  return _pick(lookup, pat, true).squeezeJoin();
+});
+
+/** * The same as `inhabit`, but if you pick a number greater than the size of the list,
+ * it wraps around, rather than sticking at the maximum value.
+ * For example, if you pick the fifth pattern of a list of three, you'll get the
+ * second one.
+ * @param {Pattern} pat
+ * @param {*} xs
+ * @returns {Pattern}
+ */
+
+export const inhabitmod = register('inhabit', function (lookup, pat) {
+  return _pick(lookup, pat, false).squeezeJoin();
+});
+
+/**
+ * Pick from the list of values (or patterns of values) via the index using the given
+ * pattern of integers. The selected pattern will be compressed to fit the duration of the selecting event
+ * @param {Pattern} pat
+ * @param {*} xs
+ * @returns {Pattern}
+ * @example
+ * note(squeeze("<0@2 [1!2] 2>", ["g a", "f g f g" , "g a c d"]))
+ */
+
+export const squeeze = (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();
+    .fmap((i) => {
+      const key = _mod(Math.round(i), xs.length);
+      return xs[key];
+    })
+    .squeezeJoin();
 };
 
+export const __chooseWith = (pat, xs) => {
+  xs = xs.map(reify);
+  if (xs.length == 0) {
+    return silence;
+  }
+
+  return pat.range(0, xs.length).fmap((i) => {
+    const key = Math.min(Math.max(Math.floor(i), 0), xs.length - 1);
+    return xs[key];
+  });
+};
+/**
+ * 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}
+ * @example
+ * note("c2 g2!2 d2 f1").s(chooseWith(sine.fast(2), ["sawtooth", "triangle", "bd:6"]))
+ */
+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(8)
+ * @example
+ * s("bd | hh | sd").fast(8)
+ */
+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 +394,7 @@ 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 +403,229 @@ 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*4,hh*8").cutoff(perlin.range(500,8000))
+ *
+ */
+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 `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 `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*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*8").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 `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("bd,hh*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("bd,hh*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/spiral.mjs

@@ -0,0 +1,118 @@
+import { Pattern } from './index.mjs';
+
+// polar coords -> xy
+function fromPolar(angle, radius, cx, cy) {
+  const radians = ((angle - 90) * Math.PI) / 180;
+  return [cx + Math.cos(radians) * radius, cy + Math.sin(radians) * radius];
+}
+
+const xyOnSpiral = (angle, margin, cx, cy, rotate = 0) => fromPolar((angle + rotate) * 360, margin * angle, cx, cy); // TODO: logSpiral
+
+// draw spiral / segment of spiral
+function spiralSegment(options) {
+  let {
+    ctx,
+    from = 0,
+    to = 3,
+    margin = 50,
+    cx = 100,
+    cy = 100,
+    rotate = 0,
+    thickness = margin / 2,
+    color = '#0000ff30',
+    cap = 'round',
+    stretch = 1,
+    fromOpacity = 1,
+    toOpacity = 1,
+  } = options;
+  from *= stretch;
+  to *= stretch;
+  rotate *= stretch;
+  ctx.lineWidth = thickness;
+  ctx.lineCap = cap;
+  ctx.strokeStyle = color;
+  ctx.globalAlpha = fromOpacity;
+
+  ctx.beginPath();
+  let [sx, sy] = xyOnSpiral(from, margin, cx, cy, rotate);
+  ctx.moveTo(sx, sy);
+
+  const increment = 1 / 60;
+  let angle = from;
+  while (angle <= to) {
+    const [x, y] = xyOnSpiral(angle, margin, cx, cy, rotate);
+    //ctx.lineWidth = angle*thickness;
+    ctx.globalAlpha = ((angle - from) / (to - from)) * toOpacity;
+    ctx.lineTo(x, y);
+    angle += increment;
+  }
+  ctx.stroke();
+}
+
+Pattern.prototype.spiral = function (options = {}) {
+  const {
+    stretch = 1,
+    size = 80,
+    thickness = size / 2,
+    cap = 'butt', // round butt squar,
+    inset = 3, // start angl,
+    playheadColor = '#ffffff90',
+    playheadLength = 0.02,
+    playheadThickness = thickness,
+    padding = 0,
+    steady = 1,
+    inactiveColor = '#ffffff20',
+    colorizeInactive = 0,
+    fade = true,
+    // logSpiral = true,
+  } = options;
+
+  function spiral({ ctx, time, haps, drawTime }) {
+    const [w, h] = [ctx.canvas.width, ctx.canvas.height];
+    ctx.clearRect(0, 0, w * 2, h * 2);
+    const [cx, cy] = [w / 2, h / 2];
+    const settings = {
+      margin: size / stretch,
+      cx,
+      cy,
+      stretch,
+      cap,
+      thickness,
+    };
+
+    const playhead = {
+      ...settings,
+      thickness: playheadThickness,
+      from: inset - playheadLength,
+      to: inset,
+      color: playheadColor,
+    };
+
+    const [min] = drawTime;
+    const rotate = steady * time;
+    haps.forEach((hap) => {
+      const isActive = hap.whole.begin <= time && hap.endClipped > time;
+      const from = hap.whole.begin - time + inset;
+      const to = hap.endClipped - time + inset - padding;
+      const { color } = hap.context;
+      const opacity = fade ? 1 - Math.abs((hap.whole.begin - time) / min) : 1;
+      spiralSegment({
+        ctx,
+        ...settings,
+        from,
+        to,
+        rotate,
+        color: colorizeInactive || isActive ? color : inactiveColor,
+        fromOpacity: opacity,
+        toOpacity: opacity,
+      });
+    });
+    spiralSegment({
+      ctx,
+      ...playhead,
+      rotate,
+    });
+  }
+
+  return this.onPaint((ctx, time, haps, drawTime) => spiral({ ctx, time, haps, drawTime }));
+};

packages/core/test/controls.test.mjs

@@ -0,0 +1,28 @@
+/*
+controls.test.mjs - <short description TODO>
+Copyright (C) 2023 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/test/controls.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 controls from '../controls.mjs';
+import { mini } from '../../mini/mini.mjs';
+import { describe, it, expect } from 'vitest';
+
+describe('controls', () => {
+  it('should support controls', () => {
+    expect(controls.s('bd').firstCycleValues).toEqual([{ s: 'bd' }]);
+  });
+  it('should support compound controls', () => {
+    expect(controls.s(mini('bd:3')).firstCycleValues).toEqual([{ s: 'bd', n: 3 }]);
+    expect(controls.s(mini('bd:3 sd:4:1.4')).firstCycleValues).toEqual([
+      { s: 'bd', n: 3 },
+      { s: 'sd', n: 4, gain: 1.4 },
+    ]);
+  });
+  it('should support ignore extra elements in compound controls', () => {
+    expect(controls.s(mini('bd:3:0.4 sd:4:0.5:3:17')).firstCycleValues).toEqual([
+      { s: 'bd', n: 3, gain: 0.4 },
+      { s: 'sd', n: 4, gain: 0.5 },
+    ]);
+  });
+});

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/solmization.test.js

@@ -0,0 +1,40 @@
+/*test for issue 302 support alternative solmization types */
+import { sol2note } from '../util.mjs';
+import { test } from 'vitest';
+import assert from 'assert';
+
+test('solmization - letters', () => {
+  const result = sol2note(60, 'letters');
+  const expected = 'C4';
+  assert.equal(result, expected);
+});
+
+test('solmization - solfeggio', () => {
+  const result = sol2note(60, 'solfeggio');
+  const expected = 'Do4';
+  assert.equal(result, expected);
+});
+
+test('solmization - indian', () => {
+  const result = sol2note(60, 'indian');
+  const expected = 'Sa4';
+  assert.equal(result, expected);
+});
+
+test('solmization - german', () => {
+  const result = sol2note(60, 'german');
+  const expected = 'C4';
+  assert.equal(result, expected);
+});
+
+test('solmization - byzantine', () => {
+  const result = sol2note(60, 'byzantine');
+  const expected = 'Ni4';
+  assert.equal(result, expected);
+});
+
+test('solmization - japanese', () => {
+  const result = sol2note(60, 'japanese');
+  const expected = 'I4';
+  assert.equal(result, expected);
+});

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,
+  noteToMidi,
+  midiToFreq,
+  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', () => {
+describe('noteToMidi', () => {
   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(noteToMidi('A4')).toEqual(69);
+    expect(noteToMidi('C4')).toEqual(60);
+    expect(noteToMidi('Db4')).toEqual(61);
+    expect(noteToMidi('C3')).toEqual(48);
+    expect(noteToMidi('Cb3')).toEqual(47);
+    expect(noteToMidi('Cbb3')).toEqual(46);
+    expect(noteToMidi('C#3')).toEqual(49);
+    expect(noteToMidi('C#3')).toEqual(49);
+    expect(noteToMidi('C##3')).toEqual(50);
+  });
+  it('should throw an error when given a non-note', () => {
+    expect(() => noteToMidi('Q')).toThrowError(`not a note: "Q"`);
+    expect(() => noteToMidi('Z')).toThrowError(`not a note: "Z"`);
   });
 });
-describe('fromMidi', () => {
+describe('midiToFreq', () => {
   it('should turn midi into frequency', () => {
-    assert.equal(fromMidi(69), 440);
-    assert.equal(fromMidi(57), 220);
+    expect(midiToFreq(69)).toEqual(440);
+    expect(midiToFreq(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);
   });
 });