build to single file

forgot tonal pkg import
add workshop seed project
2026-07-14 06:43:47 -04:00 · 2022-11-23 14:00:31 +01:00 · 2022-11-22 21:43:30 +01:00 · 2022-11-22 21:33:47 +01:00 · 2022-11-22 08:51:25 +00:00 · 2022-11-21 22:15:48 +01:00
246 changed files with 59242 additions and 13684 deletions
@@ -0,0 +1,46 @@
+name: Build and Deploy
+
+on: [workflow_dispatch]
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+  deployments: write
+
+# Allow one concurrent deployment
+concurrency:
+  group: "pages"
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 16
+          cache: "npm"
+      - name: Install Dependencies
+        run: npm ci && cd repl && npm ci && cd ../tutorial && npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v2
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v1
+        with:
+          # Upload entire repository
+          path: "./out"
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v1
@@ -7,7 +7,7 @@ jobs:
    runs-on: ubuntu-latest
    strategy:
      matrix:
-        node-version: [16, 17]
+        node-version: [18]

    steps:
    - uses: actions/checkout@v2
@@ -34,4 +34,7 @@ repl_old
 tutorial.rendered.mdx
 doc.json
 talk/public/EmuSP12
-talk/public/samples
+talk/public/samples
+server/samples/old
+repl/stats.html
+coverage
@@ -2,5 +2,8 @@
    "cSpell.words": [
        "subspan",
        "vals"
-    ]
+    ],
+    "yaml.schemas": {
+      "https://json.schemastore.org/github-workflow.json": "file:///home/felix/projects/strudel/.github/workflows/deploy.yml"
+    }
 }
@@ -12,7 +12,7 @@ To get in touch with the contributors, either

 ## Ask a Question

-If you have any questions about strudel, make sure you've read the 
+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 not, use one of the Communication Channels above!

@@ -31,10 +31,9 @@ Use one of the Communication Channels listed above.

 ## Improve the Tutorial

-If you find some weak spots in the [tutorial](https://strudel.tidalcycles.org/), 
+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.

 ## Propose a Feature
@@ -52,11 +51,11 @@ Please check that it has not been reported before.
 To fix a bug that has been reported,

 1. check that nobody else is already fixing it and respond to the issue to let people know you're on it
-3. fork the repository
-4. make sure you've setup the project (see below)
-5. hopefully fix the bug
-6. make sure the tests pass
-7. send a pull request
+2. fork the repository
+3. make sure you've setup the project (see below)
+4. hopefully fix the bug
+5. make sure the tests pass
+6. send a pull request

 ## Write Tests

@@ -80,7 +79,7 @@ cd repl && npm i # install repl dependencies
 npm run start # start repl
 ```

-Those commands might look slightly different for your OS. 
+Those commands might look slightly different for your OS.
 Please report any problems you've had with the setup instructions!

 ## Code Style
@@ -97,7 +96,7 @@ If you use VSCode, you can

 The project is split into multiple [packages](https://github.com/tidalcycles/strudel/tree/main/packages) with independent versioning.
 When you run `npm i` on the root folder, [npm workspaces](https://docs.npmjs.com/cli/v7/using-npm/workspaces) will symlink all packages
-in the `node_modules` folder. This will allow any js file to import `@strudel.cycles/<package-name>` to get the local version, 
+in the `node_modules` folder. This will allow any js file to import `@strudel.cycles/<package-name>` to get the local version,
 which allows developing multiple packages at the same time

 ## Package Publishing
@@ -105,9 +104,18 @@ which allows developing multiple packages at the same time
 To publish all packages that have been changed since the last release, run:

 ```sh
+npm login
 npx lerna publish
 ```

+### New Packages
+
+To add a new package, you have to publish it manually the first time, using:
+
+```sh
+cd packages/<package-name> && npm publish --access public
+```
+
 ## Have Fun

 Remember to have fun, and that this project is driven by the passion of volunteers!
@@ -38,6 +38,12 @@ Click on the package names to find out more about each one.

 There are many ways to contribute to this project! See [contribution guide](./CONTRIBUTING.md).

+<a href="https://github.com/tidalcycles/strudel/graphs/contributors">
+  <img src="https://contrib.rocks/image?repo=tidalcycles/strudel" />
+</a>
+
+Made with [contrib.rocks](https://contrib.rocks).
+
 ## Community

 There is a #strudel channel on the TidalCycles discord: <https://discord.com/invite/HGEdXmRkzT>
@@ -1,7 +1,7 @@
 {
  "source": {
    "includePattern": ".+\\.(js(doc|x)?|mjs)$",
-    "excludePattern": "node_modules|shift-parser|shift-reducer|shift-traverser"
+    "excludePattern": "node_modules|shift-parser|shift-reducer|shift-traverser|dist"
  },
  "plugins": ["plugins/markdown"],
  "opts": {
@@ -1,18 +1,21 @@
 {
  "name": "@strudel.cycles/monorepo",
-  "version": "0.0.1",
+  "version": "0.0.4",
  "private": true,
  "description": "Port of tidalcycles to javascript",
  "scripts": {
-    "test": "npm run test --workspaces --if-present && cd repl && npm run test",
+    "pretest": "cd tutorial && npm run jsdoc-json",
+    "test": "vitest run --version",
+    "test-ui": "vitest --ui",
+    "test-coverage": "vitest --coverage",
    "bootstrap": "lerna bootstrap",
    "setup": "npm i && npm run bootstrap && cd repl && npm i && cd ../tutorial && npm i",
-    "snapshot": "cd repl && npm run snapshot",
+    "snapshot": "vitest run -u --silent",
    "repl": "cd repl && npm run dev",
    "osc": "cd packages/osc && npm run server",
    "build": "rm -rf out && cd repl && npm run build && cd ../tutorial && npm run build",
    "preview": "npx serve ./out",
-    "deploy": "gh-pages -d out",
+    "deploy": "NODE_DEBUG=gh-pages gh-pages -d out",
    "jsdoc": "jsdoc packages/ -c jsdoc.config.json",
    "jsdoc-json": "jsdoc packages/ --template ./node_modules/jsdoc-json --destination doc.json -c jsdoc.config.json"
  },
@@ -37,12 +40,15 @@
  },
  "homepage": "https://strudel.tidalcycles.org",
  "devDependencies": {
+    "@vitest/ui": "^0.21.1",
+    "c8": "^7.12.0",
    "events": "^3.3.0",
    "gh-pages": "^4.0.0",
    "jsdoc": "^3.6.10",
    "jsdoc-json": "^2.0.2",
    "jsdoc-to-markdown": "^7.1.1",
    "lerna": "^4.0.0",
-    "mocha": "^9.1.4"
+    "rollup-plugin-visualizer": "^5.8.1",
+    "vitest": "^0.21.1"
  }
 }
@@ -0,0 +1,15 @@
+# Packages
+
+Each folder represents one of the @strudel.cycles/* packages [published to npm](https://www.npmjs.com/org/strudel.cycles).
+
+To understand how those pieces connect, refer to the [Technical Manual](https://github.com/tidalcycles/strudel/wiki/Technical-Manual) or the individual READMEs.
+
+This is a graphical view of all the packages: [full screen](https://raw.githubusercontent.com/tidalcycles/strudel/main/dependencies.svg)
+
+![dependencies](https://raw.githubusercontent.com/tidalcycles/strudel/main/dependencies.svg)
+
+Generated with
+
+```sh
+npx depcruise --include-only "^packages" -X "node_modules" --output-type dot packages | dot -T svg > dependencygraph.svg
+```
@@ -0,0 +1 @@
+examples
@@ -11,7 +11,7 @@ const generic_params = [
  /**
   * Select a sound / sample by name.
   *
-   * <details>
+   * <details style={{display:'none'}}>
   * <summary>show all sounds</summary>
   *
   * 808 (6) 808bd (25) 808cy (25) 808hc (5) 808ht (5) 808lc (5) 808lt (5) 808mc (5) 808mt (5) 808oh (5) 808sd (25) 909 (1) ab (12) ade (10) ades2 (9) ades3 (7) ades4 (6) alex (2) alphabet (26) amencutup (32) armora (7) arp (2) arpy (11) auto (11) baa (7) baa2 (7) bass (4) bass0 (3) bass1 (30) bass2 (5) bass3 (11) bassdm (24) bassfoo (3) battles (2) bd (24) bend (4) bev (2) bin (2) birds (10) birds3 (19) bleep (13) blip (2) blue (2) bottle (13) breaks125 (2) breaks152 (1) breaks157 (1) breaks165 (1) breath (1) bubble (8) can (14) casio (3) cb (1) cc (6) chin (4) circus (3) clak (2) click (4) clubkick (5) co (4) coins (1) control (2) cosmicg (15) cp (2) cr (6) crow (4) d (4) db (13) diphone (38) diphone2 (12) dist (16) dork2 (4) dorkbot (2) dr (42) dr2 (6) dr55 (4) dr_few (8) drum (6) drumtraks (13) e (8) east (9) electro1 (13) em2 (6) erk (1) f (1) feel (7) feelfx (8) fest (1) fire (1) flick (17) fm (17) foo (27) future (17) gab (10) gabba (4) gabbaloud (4) gabbalouder (4) glasstap (3) glitch (8) glitch2 (8) gretsch (24) gtr (3) h (7) hand (17) hardcore (12) hardkick (6) haw (6) hc (6) hh (13) hh27 (13) hit (6) hmm (1) ho (6) hoover (6) house (8) ht (16) if (5) ifdrums (3) incoming (8) industrial (32) insect (3) invaders (18) jazz (8) jungbass (20) jungle (13) juno (12) jvbass (13) kicklinn (1) koy (2) kurt (7) latibro (8) led (1) less (4) lighter (33) linnhats (6) lt (16) made (7) made2 (1) mash (2) mash2 (4) metal (10) miniyeah (4) monsterb (6) moog (7) mouth (15) mp3 (4) msg (9) mt (16) mute (28) newnotes (15) noise (1) noise2 (8) notes (15) numbers (9) oc (4) odx (15) off (1) outdoor (6) pad (3) padlong (1) pebbles (1) perc (6) peri (15) pluck (17) popkick (10) print (11) proc (2) procshort (8) psr (30) rave (8) rave2 (4) ravemono (2) realclaps (4) reverbkick (1) rm (2) rs (1) sax (22) sd (2) seawolf (3) sequential (8) sf (18) sheffield (1) short (5) sid (12) sine (6) sitar (8) sn (52) space (18) speakspell (12) speech (7) speechless (10) speedupdown (9) stab (23) stomp (10) subroc3d (11) sugar (2) sundance (6) tabla (26) tabla2 (46) tablex (3) tacscan (22) tech (13) techno (7) tink (5) tok (4) toys (13) trump (11) ul (10) ulgab (5) uxay (3) v (6) voodoo (5) wind (10) wobble (1) world (3) xmas (1) yeah (31)
@@ -23,7 +23,7 @@ const generic_params = [
   * @name s
   * @param {string | Pattern} sound The sound / pattern of sounds to pick
   * @example
-   * s("bd hh").osc()
+   * s("bd hh")
   *
   */
  ['s', 's', 'sound'],
@@ -40,11 +40,6 @@ const generic_params = [
   * @example
   * n("0 1 2 3").s('east').osc()
   */
-  // TODO: nOut does not work
-  // TODO: notes don't work as expected
-  // current "workaround" for notes:
-  // s('superpiano').n("<c0 d0 e0 g0>"._asNumber()).osc()
-  // -> .n or .osc (or .superdirt) would need to convert note strings to numbers
  // also see https://github.com/tidalcycles/strudel/pull/63
  ['f', 'n', 'The note or sample number to choose for a synth or sampleset'],
  ['f', 'note', 'The note or pitch to play a sound or synth with'],
@@ -62,12 +57,12 @@ const generic_params = [
   */
  ['f', 'accelerate', 'a pattern of numbers that speed up (or slow down) samples while they play.'],
  /**
-   * Like {@link amp}, but exponential.
+   * Controls the gain by an exponential amount.
   *
   * @name gain
   * @param {number | Pattern} amount gain.
   * @example
-   * s("bd*8").gain(".7*2 1 .7*2 1 .7 1").osc()
+   * s("hh*8").gain(".4!2 1 .4!2 1 .4 1")
   *
   */
  [
@@ -100,6 +95,18 @@ const generic_params = [
    'attack',
    'a pattern of numbers to specify the attack time (in seconds) of an envelope applied to each sample.',
  ],
+
+  /**
+   * Select the sound bank to use. To be used together with `s`. The bank name (+ "_") will be prepended to the value of `s`.
+   *
+   * @name bank
+   * @param {string | Pattern} bank the name of the bank
+   * @example
+   * s("bd sd").bank('RolandTR909') // = s("RolandTR909_bd RolandTR909_sd")
+   *
+   */
+  ['f', 'bank', 'selects sound bank to use'],
+
  // TODO: find out how this works?
  /*
   * Envelope decay time = the time it takes after the attack time to reach the sustain level.
@@ -129,7 +136,7 @@ const generic_params = [
   * @name bandf
   * @param {number | Pattern} frequency center frequency
   * @example
-   * s("bd sd").bandf("<1000 2000 4000 8000>").osc()
+   * s("bd sd,hh*3").bandf("<1000 2000 4000 8000>")
   *
   */
  ['f', 'bandf', 'A pattern of numbers from 0 to 1. Sets the center frequency of the band-pass filter.'],
@@ -140,17 +147,19 @@ const generic_params = [
   * @name bandq
   * @param {number | Pattern} q q factor
   * @example
-   * s("bd sd").bandf(2000).bandq("<.2 .9>").osc()
+   * s("bd sd").bandf(500).bandq("<0 1 2 3>")
   *
   */
  ['f', 'bandq', 'a pattern of anumbers from 0 to 1. Sets the q-factor of the band-pass filter.'],
  /**
   * a pattern of numbers from 0 to 1. Skips the beginning of each sample, e.g. `0.25` to cut off the first quarter from each sample.
   *
+   * @memberof Pattern
   * @name begin
   * @param {number | Pattern} amount between 0 and 1, where 1 is the length of the sample
   * @example
-   * s("rave").begin("<0 .25 .5 .75>").osc()
+   * samples({ rave: 'rave/AREUREADY.wav' }, 'github:tidalcycles/Dirt-Samples/master/')
+   * s("rave").begin("<0 .25 .5 .75>")
   *
   */
  [
@@ -159,12 +168,13 @@ const generic_params = [
    'a pattern of numbers from 0 to 1. Skips the beginning of each sample, e.g. `0.25` to cut off the first quarter from each sample.',
  ],
  /**
-   * The same as {@link begin}, but cuts off the end off each sample.
+   * The same as .begin, but cuts off the end off each sample.
   *
+   * @memberof Pattern
   * @name end
   * @param {number | Pattern} length 1 = whole sample, .5 = half sample, .25 = quarter sample etc..
   * @example
-   * s("bd*2,ho*4").end("<.1 .2 .5 1>").osc()
+   * s("bd*2,oh*4").end("<.1 .2 .5 1>")
   *
   */
  [
@@ -202,7 +212,7 @@ const generic_params = [
   * @name crush
   * @param {number | Pattern} depth between 1 (for drastic reduction in bit-depth) to 16 (for barely no reduction).
   * @example
-   * s("<bd sd>,hh*3,jvbass*2").fast(2).crush("<16 8 7 6 5 4 3 2>").osc()
+   * s("<bd sd>,hh*3").fast(2).crush("<16 8 7 6 5 4 3 2>")
   *
   */
  [
@@ -211,12 +221,12 @@ const generic_params = [
    'bit crushing, a pattern of numbers from 1 (for drastic reduction in bit-depth) to 16 (for barely no reduction).',
  ],
  /**
-   * fake-resampling for lowering the sample rate
+   * fake-resampling for lowering the sample rate. Caution: This effect seems to only work in chromium based browsers
   *
   * @name coarse
   * @param {number | Pattern} factor 1 for original 2 for half, 3 for a third and so on.
   * @example
-   * s("xmas").coarse("<1 4 8 16 32>").osc()
+   * s("bd sd,hh*4").coarse("<1 4 8 16 32>")
   *
   */
  [
@@ -253,7 +263,7 @@ const generic_params = [
   * @name cutoff
   * @param {number | Pattern} frequency audible between 0 and 20000
   * @example
-   * s("bd,hh*2,<~ sd>").fast(2).cutoff("<4000 2000 1000 500 200 100>").osc()
+   * s("bd sd,hh*3").cutoff("<4000 2000 1000 500 200 100>")
   *
   */
  // TODO: add lpf synonym
@@ -264,7 +274,7 @@ const generic_params = [
   * @name hcutoff
   * @param {number | Pattern} frequency audible between 0 and 20000
   * @example
-   * s("bd,hh*2,<~ sd>").fast(2).hcutoff("<4000 2000 1000 500 200 100>").osc()
+   * s("bd sd,hh*4").hcutoff("<4000 2000 1000 500 200 100>")
   *
   */
  // TODO: add hpf synonym
@@ -274,12 +284,12 @@ const generic_params = [
    'a pattern of numbers from 0 to 1. Applies the cutoff frequency of the high-pass filter. Also has alias @hpf@',
  ],
  /**
-   * Applies the cutoff frequency of the high-pass filter.
+   * Applies the resonance of the high-pass filter.
   *
   * @name hresonance
-   * @param {number | Pattern} q resonance factor between 0 and 1
+   * @param {number | Pattern} q resonance factor between 0 and 50
   * @example
-   * s("bd,hh*2,<~ sd>").fast(2).hcutoff(2000).hresonance("<0 .2 .4 .6>").osc()
+   * s("bd sd,hh*4").hcutoff(2000).hresonance("<0 10 20 30>")
   *
   */
  [
@@ -292,15 +302,15 @@ const generic_params = [
   * Applies the cutoff frequency of the low-pass filter.
   *
   * @name resonance
-   * @param {number | Pattern} q resonance factor between 0 and 1
+   * @param {number | Pattern} q resonance factor between 0 and 50
   * @example
-   * s("bd,hh*2,<~ sd>").fast(2).cutoff(2000).resonance("<0 .2 .4 .6>").osc()
+   * s("bd sd,hh*4").cutoff(2000).resonance("<0 10 20 30>")
   *
   */
  ['f', 'resonance', 'a pattern of numbers from 0 to 1. Specifies the resonance of the low-pass filter.'],
  // TODO: add lpq synonym?
  /**
-   * Set detune of oscillators. Works only with some synths, see <a target="_blank" href="https://tidalcycles.org/docs/patternlib/tutorials/synthesizers">tidal doc</a>
+   * DJ filter, below 0.5 is low pass filter, above is high pass filter.
   *
   * @name djf
   * @param {number | Pattern} cutoff below 0.5 is low pass filter, above is high pass filter
@@ -368,7 +378,7 @@ const generic_params = [
   * @name fadeTime
   * @param {number | Pattern} time between 0 and 1
   * @example
-   * s("ho*4").end(.1).fadeTime("<0 .2 .4 .8>").osc()
+   * s("oh*4").end(.1).fadeTime("<0 .2 .4 .8>").osc()
   *
   */
  [
@@ -493,7 +503,7 @@ const generic_params = [
   * @name pan
   * @param {number | Pattern} pan between 0 and 1, from left to right (assuming stereo), once round a circle (assuming multichannel)
   * @example
-   * s("[bd hh]*2").pan("<.5 1 .5 0>").osc()
+   * s("[bd hh]*2").pan("<.5 1 .5 0>")
   *
   */
  [
@@ -581,6 +591,11 @@ const generic_params = [
    'size',
    'a pattern of numbers from 0 to 1. Sets the perceptual size (reverb time) of the `room` to be used in reverb.',
  ],
+  [
+    'f',
+    'roomsize',
+    'a pattern of numbers from 0 to 1. Sets the perceptual size (reverb time) of the `room` to be used in reverb.',
+  ],
  // ['f', 'sagogo', ''],
  // ['f', 'sclap', ''],
  // ['f', 'sclaves', ''],
@@ -591,7 +606,7 @@ const generic_params = [
   * @name shape
   * @param {number | Pattern} distortion between 0 and 1
   * @example
-   * s("bd sd").shape("<0 .2 .4 .6 .8 1>").osc()
+   * s("bd sd,hh*4").shape("<0 .2 .4 .6 .8>")
   *
   */
  [
@@ -648,16 +663,16 @@ const generic_params = [
  // ['f', 'tomdecay', ''],
  // ['f', 'vcfegint', ''],
  // ['f', 'vcoegint', ''],
+  // TODO: Use a rest (~) to override the effect <- vowel
  /**
   *
   * Formant filter to make things sound like vowels.
   *
   * @name vowel
-   * @param {string | Pattern} vowel You can use a e i o u. Use a rest (~) to override the effect
+   * @param {string | Pattern} vowel You can use a e i o u.
   * @example
-   * vowel("a e i [o u]").slow(2)
-   * .n("<[0,7]!4 [2,7]!4>")
-   * .s('supersquare').osc()
+   * note("c2 <eb2 <g2 g1>>").s('sawtooth')
+   * .vowel("<a e i <o u>>")
   *
   */
  [
@@ -744,6 +759,7 @@ const generic_params = [
  ['f', 'uid', ''],
  ['f', 'val', ''],
  ['f', 'cps', ''],
+  ['f', 'clip', ''],
 ];

 // TODO: slice / splice https://www.youtube.com/watch?v=hKhPdO0RKDQ&list=PL2lW1zNIIwj3bDkh-Y3LUGDuRcoUigoDs&index=13
@@ -0,0 +1,87 @@
+/*
+cyclist.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/cyclist.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import createClock from './zyklus.mjs';
+import { logger } from './logger.mjs';
+
+export class Cyclist {
+  worker;
+  pattern;
+  started = false;
+  cps = 1; // TODO
+  getTime;
+  phase = 0;
+  constructor({ interval, onTrigger, onToggle, onError, getTime, latency = 0.1 }) {
+    this.getTime = getTime;
+    this.onToggle = onToggle;
+    this.latency = latency;
+    const round = (x) => Math.round(x * 1000) / 1000;
+    this.clock = createClock(
+      getTime,
+      (phase, duration, tick) => {
+        if (tick === 0) {
+          this.origin = phase;
+        }
+        const begin = round(phase - this.origin);
+        this.phase = begin - latency;
+        const end = round(begin + duration);
+        const time = getTime();
+        try {
+          const haps = this.pattern.queryArc(begin, end); // get Haps
+          haps.forEach((hap) => {
+            if (hap.part.begin.equals(hap.whole.begin)) {
+              const deadline = hap.whole.begin + this.origin - time + latency;
+              const duration = hap.duration * 1;
+              onTrigger?.(hap, deadline, duration);
+            }
+          });
+        } catch (e) {
+          logger(`[cyclist] error: ${e.message}`);
+          onError?.(e);
+        }
+      }, // called slightly before each cycle
+      interval, // duration of each cycle
+    );
+  }
+  getPhase() {
+    return this.getTime() - this.origin - this.latency;
+  }
+  setStarted(v) {
+    this.started = v;
+    this.onToggle?.(v);
+  }
+  start() {
+    if (!this.pattern) {
+      throw new Error('Scheduler: no pattern set! call .setPattern first.');
+    }
+    logger('[cyclist] start');
+    this.clock.start();
+    this.setStarted(true);
+  }
+  pause() {
+    logger('[cyclist] pause');
+    this.clock.pause();
+    this.setStarted(false);
+  }
+  stop() {
+    logger('[cyclist] stop');
+    this.clock.stop();
+    this.setStarted(false);
+  }
+  setPattern(pat, autostart = false) {
+    this.pattern = pat;
+    if (autostart && !this.started) {
+      this.start();
+    }
+  }
+  setCps(cps = 1) {
+    this.cps = cps;
+  }
+  log(begin, end, haps) {
+    const onsets = haps.filter((h) => h.hasOnset());
+    console.log(`${begin.toFixed(4)} - ${end.toFixed(4)} ${Array(onsets.length).fill('I').join('')}`);
+  }
+}
@@ -4,8 +4,7 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-import { Tone } from './tone.mjs';
-import { Pattern } from '@strudel.cycles/core';
+import { Pattern, getTime } from './index.mjs';

 export const getDrawContext = (id = 'test-canvas') => {
  let canvas = document.querySelector('#' + id);
@@ -28,7 +27,7 @@ Pattern.prototype.draw = function (callback, { from, to, onQuery }) {
  let cycle,
    events = [];
  const animate = (time) => {
-    const t = Tone.getTransport().seconds;
+    const t = getTime();
    if (from !== undefined && to !== undefined) {
      const currentCycle = Math.floor(t);
      if (cycle !== currentCycle) {
@@ -36,8 +35,7 @@ Pattern.prototype.draw = function (callback, { from, to, onQuery }) {
        const begin = currentCycle + from;
        const end = currentCycle + to;
        setTimeout(() => {
-          events = this._asNumber(true) // true = silent error
-            .query(new State(new TimeSpan(begin, end)))
+          events = this.query(new State(new TimeSpan(begin, end)))
            .filter(Boolean)
            .filter((event) => event.part.begin.equals(event.whole.begin));
          onQuery?.(events);
@@ -51,9 +49,9 @@ Pattern.prototype.draw = function (callback, { from, to, onQuery }) {
  return this;
 };

-export const cleanupDraw = () => {
+export const cleanupDraw = (clearScreen = true) => {
  const ctx = getDrawContext();
-  ctx.clearRect(0, 0, window.innerWidth, window.innerHeight);
+  clearScreen && ctx.clearRect(0, 0, window.innerWidth, window.innerHeight);
  if (window.strudelAnimation) {
    cancelAnimationFrame(window.strudelAnimation);
  }
@@ -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;
@@ -25,61 +25,70 @@ const euclid = (pulses, steps, rotation = 0) => {
 * describe a large number of rhythms used in the most important music world traditions.
 *
 * @memberof Pattern
+ * @name euclid
 * @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
+ * // The Cuban tresillo pattern.
+ * note("c3").euclid(3,8)
+ */
+
+/**
 * @example // A thirteenth century Persian rhythm called Khafif-e-ramal.
- * "c3".euclid(2,5)
+ * note("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)
+ * 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.
- * "c3".euclid(3,5,2)
+ * note("c3").euclid(3,5,2)
 * @example // A Ruchenitza rhythm used in a Bulgarian folk-dance.
- * "c3".euclid(3,7)
+ * note("c3").euclid(3,7)
 * @example // The Cuban tresillo pattern.
- * "c3".euclid(3,8)
+ * note("c3").euclid(3,8)
 * @example // Another Ruchenitza Bulgarian folk-dance rhythm.
- * "c3".euclid(4,7)
+ * note("c3").euclid(4,7)
 * @example // The Aksak rhythm of Turkey.
- * "c3".euclid(4,9)
+ * note("c3").euclid(4,9)
 * @example // The metric pattern used by Frank Zappa in his piece titled Outside Now.
- * "c3".euclid(4,11)
+ * note("c3").euclid(4,11)
 * @example // Yields the York-Samai pattern, a popular Arab rhythm.
- * "c3".euclid(5,6)
+ * note("c3").euclid(5,6)
 * @example // The Nawakhat pattern, another popular Arab rhythm.
- * "c3".euclid(5,7)
+ * note("c3").euclid(5,7)
 * @example // The Cuban cinquillo pattern.
- * "c3".euclid(5,8)
+ * note("c3").euclid(5,8)
 * @example // A popular Arab rhythm called Agsag-Samai.
- * "c3".euclid(5,9)
+ * note("c3").euclid(5,9)
 * @example // The metric pattern used by Moussorgsky in Pictures at an Exhibition.
- * "c3".euclid(5,11)
+ * note("c3").euclid(5,11)
 * @example // The Venda clapping pattern of a South African children’s song.
- * "c3".euclid(5,12)
+ * note("c3").euclid(5,12)
 * @example // The Bossa-Nova rhythm necklace of Brazil.
- * "c3".euclid(5,16)
+ * note("c3").euclid(5,16)
 * @example // A typical rhythm played on the Bendir (frame drum).
- * "c3".euclid(7,8)
+ * note("c3").euclid(7,8)
 * @example // A common West African bell pattern.
- * "c3".euclid(7,12)
+ * note("c3").euclid(7,12)
 * @example // A Samba rhythm necklace from Brazil.
- * "c3".euclid(7,16,14)
+ * note("c3").euclid(7,16,14)
 * @example // A rhythm necklace used in the Central African Republic.
- * "c3".euclid(9,16)
+ * note("c3").euclid(9,16)
 * @example // A rhythm necklace of the Aka Pygmies of Central Africa.
- * "c3".euclid(11,24,14)
+ * note("c3").euclid(11,24,14)
 * @example // Another rhythm necklace of the Aka Pygmies of the upper Sangha.
- * "c3".euclid(13,24,5)
+ * note("c3").euclid(13,24,5)
 */
 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.
+ * Similar to `.euclid`, but each pulse is held until the next pulse, so there will be no gaps.
+ * @name euclidLegato
+ * @memberof Pattern
+ * @example
+ * n("g2").decay(.1).sustain(.3).euclidLegato(3,8)
 */
 Pattern.prototype.euclidLegato = function (pulses, steps, rotation = 0) {
  const bin_pat = euclid(pulses, steps, rotation);
@@ -0,0 +1,53 @@
+/*
+evaluate.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/eval/evaluate.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { isPattern, Pattern } from './index.mjs';
+
+let scoped = false;
+export const evalScope = async (...args) => {
+  if (scoped) {
+    console.warn('evalScope was called more than once.');
+  }
+  scoped = true;
+  const results = await Promise.allSettled(args);
+  const modules = results.filter((result) => result.status === 'fulfilled').map((r) => r.value);
+  results.forEach((result, i) => {
+    if (result.status === 'rejected') {
+      console.warn(`evalScope: module with index ${i} could not be loaded:`, result.reason);
+    }
+  });
+  Object.assign(globalThis, ...modules, Pattern.prototype.bootstrap());
+};
+
+function safeEval(str, options = {}) {
+  const { wrapExpression = true, wrapAsync = true } = options;
+  if (wrapExpression) {
+    str = `{${str}}`;
+  }
+  if (wrapAsync) {
+    str = `(async ()=>${str})()`;
+  }
+  const body = `"use strict";return (${str})`;
+  return Function(body)();
+}
+
+export const evaluate = async (code, transpiler) => {
+  if (!scoped) {
+    await evalScope(); // at least scope Pattern.prototype.boostrap
+  }
+  if (transpiler) {
+    code = transpiler(code); // transform syntactically correct js code to semantically usable code
+  }
+  // if no transpiler is given, we expect a single instruction (!wrapExpression)
+  const options = { wrapExpression: !!transpiler };
+  let evaluated = await safeEval(code, options);
+  if (!isPattern(evaluated)) {
+    console.log('evaluated', evaluated);
+    const message = `got "${typeof evaluated}" instead of pattern`;
+    throw new Error(message + (typeof evaluated === 'function' ? ', did you forget to call a function?' : '.'));
+  }
+  return { mode: 'javascript', pattern: evaluated };
+};
@@ -0,0 +1,90 @@
+<div style="position: absolute; bottom: 0; right: 0; padding: 4px; width: 100vw; display: flex">
+  <button id="start" style="font-size: 2em">start</button>
+  <button id="stop" style="font-size: 2em">stop</button>
+  <button id="slower" style="font-size: 2em">slower</button>
+  <button id="faster" style="font-size: 2em">faster</button>
+</div>
+<textarea
+  style="font-size: 2em; background: #052b49; color: #fff; height: 100%; width: 100%; outline: none; border: 0"
+  id="text"
+  spellcheck="false"
+>
+Loading...</textarea
+>
+<script type="module">
+  document.body.style = 'margin: 0';
+  import * as strudel from '@strudel.cycles/core';
+
+  const { cat, State, TimeSpan, Scheduler, getPlayableNoteValue, getFreq } = strudel;
+  Object.assign(window, strudel); // add strudel to eval scope
+
+  const ctx = new AudioContext();
+  const scheduler = new Scheduler({
+    // audioContext: getAudioContext(),
+    interval: 0.1,
+    onTrigger: (hap, time, duration) => {
+      const freq = getFrequency(hap);
+      const osc = ctx.createOscillator();
+      const gain = 0.2;
+      osc.frequency.value = freq;
+      osc.type = 'triangle';
+      const onset = ctx.currentTime + time;
+      const offset = onset + duration;
+      const attack = 0.05;
+      const release = 0.05;
+      osc.start(onset);
+      osc.stop(offset + release);
+
+      const g = ctx.createGain();
+      g.gain.setValueAtTime(gain, onset);
+      g.gain.linearRampToValueAtTime(gain, onset + attack);
+      g.gain.setValueAtTime(gain, offset - release);
+      g.gain.linearRampToValueAtTime(0, offset);
+      osc.connect(g);
+      g.connect(ctx.destination);
+    },
+  });
+
+  let initialCode = `stack('c4','e4',cat('g4','a4','b4','a4'))
+.add(cat(0,1,2,3,4,3,2,1).slow(8))
+.fast(2)
+.cps(tri.range(1,8).slow(32))`;
+
+  try {
+    const base64 = decodeURIComponent(window.location.href.split('#')[1]);
+    initialCode = atob(base64);
+  } catch (err) {
+    console.warn('failed to decode', err);
+  }
+  const input = document.getElementById('text');
+  input.value = initialCode;
+  const evaluate = () => {
+    try {
+      const pattern = eval(input.value);
+      scheduler.setPattern(pattern);
+      window.location.hash = '#' + encodeURIComponent(btoa(input.value)); // update url hash
+    } catch (err) {
+      console.warn(err);
+    }
+  };
+  evaluate();
+  input.addEventListener('input', () => evaluate());
+  document.getElementById('start').addEventListener('click', async () => {
+    await ctx.resume();
+    scheduler.start();
+  });
+  document.getElementById('stop').addEventListener('click', () => scheduler.stop());
+  document.getElementById('slower').addEventListener('click', () => scheduler.setCps(scheduler.cps - 0.1));
+  document.getElementById('faster').addEventListener('click', () => scheduler.setCps(scheduler.cps + 0.1));
+</script>
+<!--
+  sequence(1,2).mul(55/2) // frequencies
+  .mul(slowcat(1,2))
+  .mul(slowcat(1,3/2,4/3,5/3).slow(8))
+  .fast(3)
+  .freq()
+  .velocity(.5)
+  .s('sawtooth')
+  .cutoff(800)
+  .out()
+-->
@@ -0,0 +1,44 @@
+<input
+  type="text"
+  id="text"
+  value="seq('c3','eb3','g3').note().s('sawtooth').out()"
+  style="width: 100%; font-size: 2em; outline: none; margin-bottom: 10px"
+  spellcheck="false"
+/>
+<button id="start">play</button>
+<div id="output"></div>
+<script type="module">
+  const strudel = await import('https://cdn.skypack.dev/@strudel.cycles/core@latest');
+
+  const controls = await import('https://cdn.skypack.dev/@strudel.cycles/core@latest/controls.mjs');
+  const { getAudioContext, Scheduler } = await import('https://cdn.skypack.dev/@strudel.cycles/webaudio@latest');
+  let scheduler;
+
+  const audioContext = getAudioContext();
+  const latency = 0.2;
+
+  Object.assign(window, strudel);
+  Object.assign(window, controls.default);
+  scheduler = new Scheduler({
+    audioContext,
+    interval: 0.1,
+    latency,
+    onEvent: (hap) => {
+      if (!hap.context.onTrigger) {
+        console.warn('no output chosen. use one of .out() .webdirt() .osc()');
+      }
+    },
+  });
+  let started;
+  document.getElementById('start').addEventListener('click', async () => {
+    const code = document.getElementById('text').value;
+    const pattern = eval(code);
+    const events = pattern._firstCycleValues;
+    console.log(code, '->', events);
+    scheduler.setPattern(pattern);
+    if (!started) {
+      scheduler.start();
+      started = true;
+    }
+  });
+</script>
@@ -0,0 +1,96 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Buildless Vanilla Strudel REPL</title>
+  </head>
+  <body style="margin: 0; background: #222">
+    <div style="display: grid; height: 100vh">
+      <textarea
+        id="text"
+        style="font-size: 2em; border: 0; color: white; background: transparent; outline: none; padding: 20px"
+        spellcheck="false"
+      ></textarea>
+    </div>
+    <button
+      id="start"
+      style="
+        position: absolute;
+        border-radius: 10px;
+        top: 20px;
+        right: 20px;
+        padding: 20px;
+        border: 2px solid white;
+        background: transparent;
+        color: white;
+        cursor: pointer;
+      "
+    >
+      evaluate
+    </button>
+    <div id="output"></div>
+    <script type="module">
+      import { controls, repl, evalScope } from 'https://cdn.skypack.dev/@strudel.cycles/core@0.3.2';
+      import { mini } from 'https://cdn.skypack.dev/@strudel.cycles/mini@0.3.2';
+      import { transpiler } from 'https://cdn.skypack.dev/@strudel.cycles/transpiler@0.3.2';
+      import { getAudioContext, webaudioOutput } from 'https://cdn.skypack.dev/@strudel.cycles/webaudio@0.3.3';
+
+      const ctx = getAudioContext();
+      const input = document.getElementById('text');
+      input.innerHTML = getTune();
+
+      evalScope(
+        controls,
+        import('https://cdn.skypack.dev/@strudel.cycles/core@0.3.2'),
+        import('https://cdn.skypack.dev/@strudel.cycles/mini@0.3.2'),
+        import('https://cdn.skypack.dev/@strudel.cycles/tonal@0.3.3'),
+        import('https://cdn.skypack.dev/@strudel.cycles/webaudio@0.3.3'),
+      );
+
+      const { evaluate } = repl({
+        defaultOutput: webaudioOutput,
+        getTime: () => ctx.currentTime,
+        transpiler,
+      });
+      document.getElementById('start').addEventListener('click', () => {
+        ctx.resume();
+        evaluate(input.value);
+      });
+
+      function getTune() {
+        return `await samples('github:tidalcycles/Dirt-Samples/master')
+
+stack(
+  // amen
+  n("0 1 2 3 4 5 6 7")
+  .sometimes(x=>x.ply(2))
+  .rarely(x=>x.speed("2 | -2"))
+  .sometimesBy(.4, x=>x.delay(".5"))
+  .s("amencutup")
+  .slow(2)
+  .room(.5)
+  ,
+  // bass
+  sine.add(saw.slow(4)).range(0,7).segment(8)
+  .superimpose(x=>x.add(.1))
+  .scale('G0 minor').note()
+  .s("sawtooth").decay(.1).sustain(0)
+  .gain(.4).cutoff(perlin.range(300,3000).slow(8)).resonance(10)
+  .degradeBy("0 0.1 .5 .1")
+  .rarely(add(note("12")))
+  ,
+  // chord
+  note("Bb3,D4".superimpose(x=>x.add(.2)))
+  .s('sawtooth').cutoff(1000).struct("<~@3 [~ x]>")
+  .decay(.05).sustain(.0).delay(.8).delaytime(.125).room(.8)
+  ,
+  // alien
+  s("breath").room(1).shape(.6).chop(16).rev().mask("<x ~@7>")
+  ,
+  n("0 1").s("east").delay(.5).degradeBy(.8).speed(rand.range(.5,1.5))
+).reset("<x@7 x(5,8)>")`;
+      }
+    </script>
+  </body>
+</html>
@@ -0,0 +1 @@
+!dist
@@ -0,0 +1,10 @@
+# vite-vanilla-repl
+
+This folder demonstrates how to set up a strudel repl using vite and vanilla JS. Run it using:
+
+```sh
+npm i
+npm run dev
+```
+
+or view it [live on githack](https://rawcdn.githack.com/tidalcycles/strudel/5fb36acb046ead7cd6ad3cd10f532e7f585f536a/packages/core/examples/vite-vanilla-repl/dist/index.html)
@@ -0,0 +1 @@
+import{b as s,h as i,m,a as n,c as p,p as t}from"./index.4cbc0a10.js";export{s as SyntaxError,i as h,m as mini,n as minify,p as parse,t as patternifyAST};
@@ -0,0 +1 @@
+import{g as s,f as d,i as t,n as r,l as u,j as o,d as f,k as p,r as g,s as i,w as l,e as m}from"./index.4cbc0a10.js";export{s as getAudioContext,d as getCachedBuffer,t as getLoadedBuffer,r as getLoadedSamples,u as loadBuffer,o as loadGithubSamples,f as panic,p as resetLoadedSamples,g as reverseBuffer,i as samples,l as webaudioOutput,m as webaudioOutputTrigger};
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Vite Vanilla Strudel REPL</title>
+    <script type="module" crossorigin src="/tidalcycles/strudel/use-acorn/packages/core/examples/vite-vanilla-repl/dist/assets/index.4cbc0a10.js"></script>
+  </head>
+  <body style="margin: 0; background: #222">
+    <div style="display: grid; height: 100vh">
+      <textarea
+        id="text"
+        style="font-size: 2em; border: 0; color: white; background: transparent; outline: none; padding: 20px"
+        spellcheck="false"
+      ></textarea>
+    </div>
+    <button
+      id="start"
+      style="
+        position: absolute;
+        border-radius: 10px;
+        top: 20px;
+        right: 20px;
+        padding: 20px;
+        border: 2px solid white;
+        background: transparent;
+        color: white;
+        cursor: pointer;
+      "
+    >
+      evaluate
+    </button>
+    <div id="output"></div>
+    
+  </body>
+</html>
@@ -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>
@@ -0,0 +1,29 @@
+import { controls, repl, evalScope, setStringParser } from '@strudel.cycles/core';
+import { mini } from '@strudel.cycles/mini';
+import { getAudioContext, webaudioOutput } from '@strudel.cycles/webaudio';
+// import { transpiler } from '@strudel.cycles/transpiler';
+import tune from './tune.mjs';
+
+const ctx = getAudioContext();
+const input = document.getElementById('text');
+input.innerHTML = tune;
+
+evalScope(
+  controls,
+  import('@strudel.cycles/core'),
+  import('@strudel.cycles/mini'),
+  import('@strudel.cycles/webaudio'),
+  import('@strudel.cycles/tonal'),
+);
+
+setStringParser(mini)
+
+const { evaluate } = repl({
+  defaultOutput: webaudioOutput,
+  getTime: () => ctx.currentTime,
+  // transpiler,
+});
+document.getElementById('start').addEventListener('click', () => {
+  ctx.resume();
+  evaluate(input.value);
+});
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+}
@@ -0,0 +1,15 @@
+{
+  "name": "vite-vanilla-repl",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build-githack": "vite build --base /tidalcycles/strudel/use-acorn/packages/core/examples/vite-vanilla-repl/dist/",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "devDependencies": {
+    "vite": "^3.2.0"
+  }
+}
@@ -0,0 +1,39 @@
+/* export default `await samples('github:tidalcycles/Dirt-Samples/master')
+
+stack(
+  // amen
+  n("0 1 2 3 4 5 6 7")
+  .sometimes(x=>x.ply(2))
+  .rarely(x=>x.speed("2 | -2"))
+  .sometimesBy(.4, x=>x.delay(".5"))
+  .s("amencutup")
+  .slow(2)
+  .room(.5)
+  ,
+  // bass
+  sine.add(saw.slow(4)).range(0,7).segment(8)
+  .superimpose(x=>x.add(.1))
+  .scale('G0 minor').note()
+  .s("sawtooth").decay(.1).sustain(0)
+  .gain(.4).cutoff(perlin.range(300,3000).slow(8)).resonance(10)
+  .degradeBy("0 0.1 .5 .1")
+  .rarely(add(note("12")))
+  ,
+  // chord
+  note("Bb3,D4".superimpose(x=>x.add(.2)))
+  .s('sawtooth').cutoff(1000).struct("<~@3 [~ x]>")
+  .decay(.05).sustain(.0).delay(.8).delaytime(.125).room(.8)
+  ,
+  // alien
+  s("breath").room(1).shape(.6).chop(16).rev().mask("<x ~@7>")
+  ,
+  n("0 1").s("east").delay(.5).degradeBy(.8).speed(rand.range(.5,1.5))
+).reset("<x@7 x(5,8)>")`;
+ */
+
+export default `stack(
+  n("c3 [eb3,g3]")
+  .delay("<0 .5>")
+  .delaytime(".16 | .33")
+  .delayfeedback(".6 | .8")
+).sometimes(x=>x.speed("-1"))`;
@@ -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);
 };
@@ -85,9 +85,13 @@ export class Hap {
    );
  }

-  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
    }`;
  }

@@ -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 +16,24 @@ export * from './state.mjs';
 export * from './timespan.mjs';
 export * from './util.mjs';
 export * from './speak.mjs';
+export * from './evaluate.mjs';
+export * from './repl.mjs';
+export * from './logger.mjs';
+export * from './time.mjs';
+export * from './draw.mjs';
+export * from './pianoroll.mjs';
+export * from './ui.mjs';
+export { default as drawLine } from './drawLine.mjs';
 export { default as gist } from './gist.js';
-// export * from './value.mjs';
+// below won't work with runtime.mjs (json import fails)
+/* import * as p from './package.json';
+export const version = p.version; */
+logger('🌀 @strudel.cycles/core loaded 🌀');
+if (globalThis._strudelLoaded) {
+  console.warn(
+    `@strudel.cycles/core was loaded more than once...
+This might happen when you have multiple versions of strudel installed. 
+Please check with "npm ls @strudel.cycles/core".`,
+  );
+}
+globalThis._strudelLoaded = true;
@@ -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 CustomEvent !== 'undefined') {
+    document.dispatchEvent(
+      new CustomEvent(logKey, {
+        detail: {
+          message,
+          type,
+          data,
+        },
+      }),
+    );
+  }
+}
+
+logger.key = logKey;
@@ -1,6 +1,6 @@
 {
 	"name": "@strudel.cycles/core",
-	"version": "0.1.2",
+	"version": "0.4.0",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
@@ -1,11 +1,11 @@
 {
  "name": "@strudel.cycles/core",
-  "version": "0.1.2",
+  "version": "0.4.0",
  "description": "Port of Tidal Cycles to JavaScript",
  "main": "index.mjs",
  "type": "module",
  "scripts": {
-    "test": "mocha --colors"
+    "test": "vitest run"
  },
  "repository": {
    "type": "git",
@@ -28,8 +28,5 @@
    "bjork": "^0.0.1",
    "fraction.js": "^4.2.0"
  },
-  "devDependencies": {
-    "mocha": "^9.2.2"
-  },
  "gitHead": "0e26d4e741500f5bae35b023608f062a794905c2"
 }
@@ -4,9 +4,16 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-import { Pattern } from '@strudel.cycles/core';
+import { Pattern } from './index.mjs';

 const scale = (normalized, min, max) => normalized * (max - min) + min;
+const getValue = (e) => {
+  let value = typeof e.value === 'object' ? e.value.note ?? e.value.n : e.value;
+  if (typeof value === 'string') {
+    value = toMidi(value);
+  }
+  return value;
+};

 Pattern.prototype.pianoroll = function ({
  cycles = 4,
@@ -15,10 +22,14 @@ Pattern.prototype.pianoroll = function ({
  flipTime = 0,
  flipValues = 0,
  hideNegative = false,
-  inactive = '#C9E597',
+  // inactive = '#C9E597',
+  // inactive = '#FFCA28',
+  inactive = '#7491D2',
  active = '#FFCA28',
  // background = '#2A3236',
  background = 'transparent',
+  smear = 0,
+  playheadColor = 'white',
  minMidi = 10,
  maxMidi = 90,
  autorange = 0,
@@ -51,12 +62,14 @@ Pattern.prototype.pianoroll = function ({
  flipTime && timeRange.reverse();
  flipValues && valueRange.reverse();

-  const playheadPosition = scale(-from / timeExtent, ...timeRange);
  this.draw(
    (ctx, events, t) => {
      ctx.fillStyle = background;
-      ctx.clearRect(0, 0, w, h);
-      ctx.fillRect(0, 0, w, h);
+      ctx.globalAlpha = 1; // reset!
+      if (!smear) {
+        ctx.clearRect(0, 0, w, h);
+        ctx.fillRect(0, 0, w, h);
+      }
      const inFrame = (event) =>
        (!hideNegative || event.whole.begin >= 0) && event.whole.begin <= t + to && event.whole.end >= t + from;
      events.filter(inFrame).forEach((event) => {
@@ -64,20 +77,11 @@ Pattern.prototype.pianoroll = function ({
        ctx.fillStyle = event.context?.color || inactive;
        ctx.strokeStyle = event.context?.color || active;
        ctx.globalAlpha = event.context.velocity ?? 1;
-        ctx.beginPath();
-        if (vertical) {
-          ctx.moveTo(0, playheadPosition);
-          ctx.lineTo(valueAxis, playheadPosition);
-        } else {
-          ctx.moveTo(playheadPosition, 0);
-          ctx.lineTo(playheadPosition, valueAxis);
-        }
-        ctx.stroke();
        const timePx = scale((event.whole.begin - (flipTime ? to : from)) / timeExtent, ...timeRange);
        let durationPx = scale(event.duration / timeExtent, 0, timeAxis);
-
+        const value = getValue(event);
        const valuePx = scale(
-          fold ? foldValues.indexOf(event.value) / foldValues.length : (Number(event.value) - minMidi) / valueExtent,
+          fold ? foldValues.indexOf(value) / foldValues.length : (Number(value) - minMidi) / valueExtent,
          ...valueRange,
        );
        let margin = 0;
@@ -100,12 +104,24 @@ Pattern.prototype.pianoroll = function ({
        }
        isActive ? ctx.strokeRect(...coords) : ctx.fillRect(...coords);
      });
+      ctx.globalAlpha = 1; // reset!
+      const playheadPosition = scale(-from / timeExtent, ...timeRange);
+      // draw playhead
+      ctx.strokeStyle = playheadColor;
+      ctx.beginPath();
+      if (vertical) {
+        ctx.moveTo(0, playheadPosition);
+        ctx.lineTo(valueAxis, playheadPosition);
+      } else {
+        ctx.moveTo(playheadPosition, 0);
+        ctx.lineTo(playheadPosition, valueAxis);
+      }
+      ctx.stroke();
    },
    {
      from: from - overscan,
      to: to + overscan,
      onQuery: (events) => {
-        const getValue = (e) => Number(e.value);
        const { min, max, values } = events.reduce(
          ({ min, max, values }, e) => {
            const v = getValue(e);
@@ -0,0 +1,59 @@
+import { Cyclist } from './cyclist.mjs';
+import { evaluate as _evaluate } from './evaluate.mjs';
+import { logger } from './logger.mjs';
+import { setTime } from './time.mjs';
+
+export function repl({
+  interval,
+  defaultOutput,
+  onSchedulerError,
+  onEvalError,
+  beforeEval,
+  afterEval,
+  getTime,
+  transpiler,
+  onToggle,
+}) {
+  const scheduler = new Cyclist({
+    interval,
+    onTrigger: async (hap, deadline, duration) => {
+      try {
+        if (!hap.context.onTrigger || !hap.context.dominantTrigger) {
+          await defaultOutput(hap, deadline, duration);
+        }
+        if (hap.context.onTrigger) {
+          const cps = 1;
+          // call signature of output / onTrigger is different...
+          await hap.context.onTrigger(getTime() + deadline, hap, getTime(), cps);
+        }
+      } catch (err) {
+        logger(`[cyclist] error: ${err.message}`, 'error');
+      }
+    },
+    onError: onSchedulerError,
+    getTime,
+    onToggle,
+  });
+  setTime(() => scheduler.getPhase()); // TODO: refactor?
+  const evaluate = async (code, autostart = true) => {
+    if (!code) {
+      throw new Error('no code to evaluate');
+    }
+    try {
+      beforeEval({ code });
+      const { pattern } = await _evaluate(code, transpiler);
+      logger(`[eval] code updated`);
+      scheduler.setPattern(pattern, autostart);
+      afterEval({ code, pattern });
+      return pattern;
+    } catch (err) {
+      // console.warn(`[repl] eval error: ${err.message}`);
+      logger(`[eval] error: ${err.message}`, 'error');
+      onEvalError?.(err);
+    }
+  };
+  const stop = () => scheduler.stop();
+  const start = () => scheduler.start();
+  const pause = () => scheduler.pause();
+  return { scheduler, evaluate, start, stop, pause };
+}
@@ -5,7 +5,7 @@ This program is free software: you can redistribute it and/or modify it under th
 */

 import { Hap } from './hap.mjs';
-import { Pattern, fastcat, reify, silence, stack } from './pattern.mjs';
+import { Pattern, fastcat, reify, silence, stack, isPattern } from './pattern.mjs';
 import Fraction from './fraction.mjs';
 import { id } from './util.mjs';

@@ -20,20 +20,20 @@ export const signal = (func) => {
 };

 export const isaw = signal((t) => 1 - (t % 1));
-export const isaw2 = isaw._toBipolar();
+export const isaw2 = isaw.toBipolar();

 /**
 *  A sawtooth signal between 0 and 1.
 *
 * @return {Pattern}
 * @example
- * "c3 [eb3,g3] g2 [g3,bb3]".legato(saw.slow(4))
+ * "c3 [eb3,g3] g2 [g3,bb3]".legato(saw.slow(4)).note()
 * @example
- * saw.range(0,8).segment(8).scale('C major').slow(4)
+ * saw.range(0,8).segment(8).scale('C major').slow(4).note()
 *
 */
 export const saw = signal((t) => t % 1);
-export const saw2 = saw._toBipolar();
+export const saw2 = saw.toBipolar();

 export const sine2 = signal((t) => Math.sin(Math.PI * 2 * t));

@@ -42,41 +42,39 @@ export const sine2 = signal((t) => Math.sin(Math.PI * 2 * t));
 *
 * @return {Pattern}
 * @example
- * sine.segment(16).range(0,15).slow(2).scale('C minor')
+ * sine.segment(16).range(0,15).slow(2).scale('C minor').note()
 *
 */
-export const sine = sine2._fromBipolar();
-
+export const sine = sine2.fromBipolar();

 /**
 *  A cosine signal between 0 and 1.
 *
 * @return {Pattern}
 * @example
- * stack(sine,cosine).segment(16).range(0,15).slow(2).scale('C minor')
+ * stack(sine,cosine).segment(16).range(0,15).slow(2).scale('C minor').note()
 *
 */
 export const cosine = sine._early(Fraction(1).div(4));
 export const cosine2 = sine2._early(Fraction(1).div(4));

-
 /**
 *  A square signal between 0 and 1.
 *
 * @return {Pattern}
 * @example
- * square.segment(2).range(0,7).scale('C minor')
+ * square.segment(2).range(0,7).scale('C minor').note()
 *
 */
 export const square = signal((t) => Math.floor((t * 2) % 2));
-export const square2 = square._toBipolar();
+export const square2 = square.toBipolar();

 /**
 *  A triangle signal between 0 and 1.
 *
 * @return {Pattern}
 * @example
- * triangle.segment(2).range(0,7).scale('C minor')
+ * tri.segment(8).range(0,7).scale('C minor').note()
 *
 */
 export const tri = fastcat(isaw, saw);
@@ -112,28 +110,112 @@ const timeToRandsPrime = (seed, n) => {

 const timeToRands = (t, n) => timeToRandsPrime(timeToIntSeed(t), n);

+/**
+ *
+ */
+
+/**
+ * A continuous pattern of random numbers, between 0 and 1.
+ *
+ * @name rand
+ * @example
+ * // randomly change the cutoff
+ * s("bd sd,hh*4").cutoff(rand.range(500,2000))
+ *
+ */
 export const rand = signal(timeToRand);
+/**
+ * A continuous pattern of random numbers, between -1 and 1
+ */
+export const rand2 = rand.toBipolar();

 export const _brandBy = (p) => rand.fmap((x) => x < p);
 export const brandBy = (pPat) => reify(pPat).fmap(_brandBy).innerJoin();
 export const brand = _brandBy(0.5);

 export const _irand = (i) => rand.fmap((x) => Math.trunc(x * i));
+
+/**
+ * A continuous pattern of random integers, between 0 and n-1.
+ *
+ * @name irand
+ * @param {number} n max value (exclusive)
+ * @example
+ * // randomly select scale notes from 0 - 7 (= C to C)
+ * irand(8).struct("x(3,8)").scale('C minor').note()
+ *
+ */
 export const irand = (ipat) => reify(ipat).fmap(_irand).innerJoin();

-export const chooseWith = (pat, xs) => {
+export const __chooseWith = (pat, xs) => {
  xs = xs.map(reify);
  if (xs.length == 0) {
    return silence;
  }
-  return pat
-    .range(0, xs.length)
-    .fmap((i) => xs[Math.floor(i)])
-    .outerJoin();
+  return pat.range(0, xs.length).fmap((i) => xs[Math.floor(i)]);
+};
+/**
+ * Choose from the list of values (or patterns of values) using the given
+ * pattern of numbers, which should be in the range of 0..1
+ * @param {Pattern} pat
+ * @param {*} xs
+ * @returns {Pattern}
+ */
+export const chooseWith = (pat, xs) => {
+  return __chooseWith(pat, xs).outerJoin();
 };

+/**
+ * As with {chooseWith}, but the structure comes from the chosen values, rather
+ * than the pattern you're using to choose with.
+ * @param {Pattern} pat
+ * @param {*} xs
+ * @returns {Pattern}
+ */
+export const chooseInWith = (pat, xs) => {
+  return __chooseWith(pat, xs).innerJoin();
+};
+
+/**
+ * Chooses randomly from the given list of elements.
+ * @param  {...any} xs values / patterns to choose from.
+ * @returns {Pattern} - a continuous pattern.
+ */
 export const choose = (...xs) => chooseWith(rand, xs);

+/**
+ * Chooses from the given list of values (or patterns of values), according
+ * to the pattern that the method is called on. The pattern should be in
+ * the range 0 .. 1.
+ * @param  {...any} xs
+ * @returns {Pattern}
+ */
+Pattern.prototype.choose = function (...xs) {
+  return chooseWith(this, xs);
+};
+
+/**
+ * As with choose, but the pattern that this method is called on should be
+ * in the range -1 .. 1
+ * @param  {...any} xs
+ * @returns {Pattern}
+ */
+Pattern.prototype.choose2 = function (...xs) {
+  return chooseWith(this.fromBipolar(), xs);
+};
+
+/**
+ * Picks one of the elements at random each cycle.
+ * @returns {Pattern}
+ * @example
+ * chooseCycles("bd", "hh", "sd").s().fast(4)
+ * @example
+ * "bd | hh | sd".s().fast(4)
+ */
+export const chooseCycles = (...xs) => chooseInWith(rand.segment(1), xs);
+
+export const randcat = chooseCycles;
+
 const _wchooseWith = function (pat, ...pairs) {
  const values = pairs.map((pair) => reify(pair[0]));
  const weights = [];
@@ -156,6 +238,7 @@ export const wchoose = (...pairs) => wchooseWith(rand, ...pairs);

 export const wchooseCycles = (...pairs) => _wchooseWith(rand, ...pairs).innerJoin();

+// this function expects pat to be a pattern of floats...
 export const perlinWith = (pat) => {
  const pata = pat.fmap(Math.floor);
  const patb = pat.fmap((t) => Math.floor(t) + 1);
@@ -164,20 +247,68 @@ export const perlinWith = (pat) => {
  return pat.sub(pata).fmap(interp).appBoth(pata.fmap(timeToRand)).appBoth(patb.fmap(timeToRand));
 };

-export const perlin = perlinWith(time);
+/**
+ * Generates a continuous pattern of [perlin noise](https://en.wikipedia.org/wiki/Perlin_noise), in the range 0..1.
+ *
+ * @name perlin
+ * @example
+ * // randomly change the cutoff
+ * s("bd sd,hh*4").cutoff(perlin.range(500,2000))
+ *
+ */
+export const perlin = perlinWith(time.fmap((v) => Number(v)));

 Pattern.prototype._degradeByWith = function (withPat, x) {
-  return this.fmap((a) => (_) => a).appLeft(withPat._filterValues((v) => v > x));
+  return this.fmap((a) => (_) => a).appLeft(withPat.filterValues((v) => v > 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")
+ */
 Pattern.prototype._degradeBy = function (x) {
  return this._degradeByWith(rand, x);
 };

+/**
+ *
+ * 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")
+ */
 Pattern.prototype.degrade = function () {
  return this._degradeBy(0.5);
 };

+/**
+ * Inverse of {@link Pattern#degradeBy}: Randomly removes events from the pattern by a given amount.
+ * 0 = 100% chance of removal
+ * 1 = 0% chance of removal
+ * Events that would be removed by degradeBy are let through by undegradeBy and vice versa (see second example).
+ *
+ * @name undegradeBy
+ * @memberof Pattern
+ * @param {number} amount - a number between 0 and 1
+ * @returns Pattern
+ * @example
+ * s("hh*8").undegradeBy(0.2)
+ */
 Pattern.prototype._undegradeBy = function (x) {
  return this._degradeByWith(
    rand.fmap((r) => 1 - r),
@@ -193,6 +324,25 @@ Pattern.prototype._sometimesBy = function (x, func) {
  return stack(this._degradeBy(x), func(this._undegradeBy(1 - x)));
 };

+// https://github.com/tidalcycles/strudel/discussions/198
+/* Pattern.prototype._sometimesBy = function (x, other) {
+  other = typeof other === 'function' ? other(this._undegradeBy(1 - x)) : reify(other)._undegradeBy(1 - x);
+  return stack(this._degradeBy(x), other);
+}; */
+
+/**
+ *
+ * Randomly applies the given function by the given probability.
+ * Similar to {@link Pattern#someCyclesBy}
+ *
+ * @name sometimesBy
+ * @memberof Pattern
+ * @param {number | Pattern} probability - a number between 0 and 1
+ * @param {function} function - the transformation to apply
+ * @returns Pattern
+ * @example
+ * s("hh(3,8)").sometimesBy(.4, x=>x.speed("0.5"))
+ */
 Pattern.prototype.sometimesBy = function (patx, func) {
  const pat = this;
  return reify(patx)
@@ -200,6 +350,7 @@ Pattern.prototype.sometimesBy = function (patx, func) {
    .innerJoin();
 };

+// why does this exist? it is identical to sometimesBy
 Pattern.prototype._sometimesByPre = function (x, func) {
  return stack(this._degradeBy(x), func(this).undegradeBy(1 - x));
 };
@@ -211,6 +362,17 @@ Pattern.prototype.sometimesByPre = function (patx, func) {
    .innerJoin();
 };

+/**
+ *
+ * Applies the given function with a 50% chance
+ *
+ * @name sometimes
+ * @memberof Pattern
+ * @param {function} function - the transformation to apply
+ * @returns Pattern
+ * @example
+ * s("hh*4").sometimes(x=>x.speed("0.5"))
+ */
 Pattern.prototype.sometimes = function (func) {
  return this._sometimesBy(0.5, func);
 };
@@ -226,6 +388,19 @@ Pattern.prototype._someCyclesBy = function (x, func) {
  );
 };

+/**
+ *
+ * Randomly applies the given function by the given probability on a cycle by cycle basis.
+ * Similar to {@link Pattern#sometimesBy}
+ *
+ * @name someCyclesBy
+ * @memberof Pattern
+ * @param {number | Pattern} probability - a number between 0 and 1
+ * @param {function} function - the transformation to apply
+ * @returns Pattern
+ * @example
+ * s("hh(3,8)").someCyclesBy(.3, x=>x.speed("0.5"))
+ */
 Pattern.prototype.someCyclesBy = function (patx, func) {
  const pat = this;
  return reify(patx)
@@ -233,30 +408,100 @@ Pattern.prototype.someCyclesBy = function (patx, func) {
    .innerJoin();
 };

+/**
+ *
+ * Shorthand for `.someCyclesBy(0.5, fn)`
+ *
+ * @name someCycles
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh(3,8)").someCycles(x=>x.speed("0.5"))
+ */
 Pattern.prototype.someCycles = function (func) {
  return this._someCyclesBy(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"))
+ */
 Pattern.prototype.often = function (func) {
  return this.sometimesBy(0.75, func);
 };

+/**
+ *
+ * Shorthand for `.sometimesBy(0.25, fn)`
+ *
+ * @name rarely
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").rarely(x=>x.speed("0.5"))
+ */
 Pattern.prototype.rarely = function (func) {
  return this.sometimesBy(0.25, func);
 };

+/**
+ *
+ * Shorthand for `.sometimesBy(0.1, fn)`
+ *
+ * @name almostNever
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").almostNever(x=>x.speed("0.5"))
+ */
 Pattern.prototype.almostNever = function (func) {
  return this.sometimesBy(0.1, func);
 };

+/**
+ *
+ * Shorthand for `.sometimesBy(0.9, fn)`
+ *
+ * @name almostAlways
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").almostAlways(x=>x.speed("0.5"))
+ */
 Pattern.prototype.almostAlways = function (func) {
  return this.sometimesBy(0.9, 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"))
+ */
 Pattern.prototype.never = function (func) {
  return this;
 };

+/**
+ *
+ * Shorthand for `.sometimesBy(1, fn)` (always calls fn)
+ *
+ * @name always
+ * @memberof Pattern
+ * @returns Pattern
+ * @example
+ * s("hh*8").always(x=>x.speed("0.5"))
+ */
 Pattern.prototype.always = function (func) {
  return func(this);
 };
@@ -32,11 +32,8 @@ function speak(words, lang, voice) {
 }

 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 });
+  return this.onTrigger((_, hap) => {
+    speak(hap.value, lang, voice);
  });
 };

@@ -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`);
  });
 });
@@ -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');
  });
 });
@@ -1,120 +1,224 @@
 /*
-util.test.mjs - <short description TODO>
+util.test.mjs - Tests for the core 'util' module
 Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/core/test/util.test.mjs>
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-import { strict as assert } from 'assert';
 import { pure } from '../pattern.mjs';
-import { isNote, tokenizeNote, toMidi, fromMidi, mod, compose, getFrequency } from '../util.mjs';
+import {
+  isNote,
+  tokenizeNote,
+  toMidi,
+  fromMidi,
+  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 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('C')).toBe(false);
+    expect(isNote('X')).toBe(false);
+    expect(isNote(1)).toBe(false);
  });
 });

 describe('isNote', () => {
  it('should tokenize notes without accidentals', () => {
-    assert.deepStrictEqual(tokenizeNote('C3'), ['C', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('D3'), ['D', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('E3'), ['E', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('F3'), ['F', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('G3'), ['G', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('A3'), ['A', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('B3'), ['B', '', 3]);
-    assert.deepStrictEqual(tokenizeNote('C4'), ['C', '', 4]);
-    assert.deepStrictEqual(tokenizeNote('D5'), ['D', '', 5]);
+    expect(tokenizeNote('C3')).toStrictEqual(['C', '', 3]);
+    expect(tokenizeNote('D3')).toStrictEqual(['D', '', 3]);
+    expect(tokenizeNote('E3')).toStrictEqual(['E', '', 3]);
+    expect(tokenizeNote('F3')).toStrictEqual(['F', '', 3]);
+    expect(tokenizeNote('G3')).toStrictEqual(['G', '', 3]);
+    expect(tokenizeNote('A3')).toStrictEqual(['A', '', 3]);
+    expect(tokenizeNote('B3')).toStrictEqual(['B', '', 3]);
+    expect(tokenizeNote('C4')).toStrictEqual(['C', '', 4]);
+    expect(tokenizeNote('D5')).toStrictEqual(['D', '', 5]);
  });
  it('should tokenize notes with accidentals', () => {
-    assert.deepStrictEqual(tokenizeNote('C#3'), ['C', '#', 3]);
-    assert.deepStrictEqual(tokenizeNote('D##3'), ['D', '##', 3]);
-    assert.deepStrictEqual(tokenizeNote('Eb3'), ['E', 'b', 3]);
-    assert.deepStrictEqual(tokenizeNote('Fbb3'), ['F', 'bb', 3]);
-    assert.deepStrictEqual(tokenizeNote('Bb5'), ['B', 'b', 5]);
+    expect(tokenizeNote('C#3')).toStrictEqual(['C', '#', 3]);
+    expect(tokenizeNote('D##3')).toStrictEqual(['D', '##', 3]);
+    expect(tokenizeNote('Eb3')).toStrictEqual(['E', 'b', 3]);
+    expect(tokenizeNote('Fbb3')).toStrictEqual(['F', 'bb', 3]);
+    expect(tokenizeNote('Bb5')).toStrictEqual(['B', 'b', 5]);
  });
  it('should tokenize notes without octave', () => {
-    assert.deepStrictEqual(tokenizeNote('C'), ['C', '', undefined]);
-    assert.deepStrictEqual(tokenizeNote('C#'), ['C', '#', undefined]);
-    assert.deepStrictEqual(tokenizeNote('Bb'), ['B', 'b', undefined]);
-    assert.deepStrictEqual(tokenizeNote('Bbb'), ['B', 'bb', undefined]);
+    expect(tokenizeNote('C')).toStrictEqual(['C', '', undefined]);
+    expect(tokenizeNote('C#')).toStrictEqual(['C', '#', undefined]);
+    expect(tokenizeNote('Bb')).toStrictEqual(['B', 'b', undefined]);
+    expect(tokenizeNote('Bbb')).toStrictEqual(['B', 'bb', undefined]);
  });
  it('should not tokenize invalid notes', () => {
-    assert.deepStrictEqual(tokenizeNote('X'), []);
-    assert.deepStrictEqual(tokenizeNote('asfasf'), []);
-    assert.deepStrictEqual(tokenizeNote(123), []);
+    expect(tokenizeNote('X')).toStrictEqual([]);
+    expect(tokenizeNote('asfasf')).toStrictEqual([]);
+    expect(tokenizeNote(123)).toStrictEqual([]);
  });
 });
 describe('toMidi', () => {
  it('should turn notes into midi', () => {
-    assert.equal(toMidi('A4'), 69);
-    assert.equal(toMidi('C4'), 60);
-    assert.equal(toMidi('Db4'), 61);
-    assert.equal(toMidi('C3'), 48);
-    assert.equal(toMidi('Cb3'), 47);
-    assert.equal(toMidi('Cbb3'), 46);
-    assert.equal(toMidi('C#3'), 49);
-    assert.equal(toMidi('C#3'), 49);
-    assert.equal(toMidi('C##3'), 50);
+    expect(toMidi('A4')).toEqual(69);
+    expect(toMidi('C4')).toEqual(60);
+    expect(toMidi('Db4')).toEqual(61);
+    expect(toMidi('C3')).toEqual(48);
+    expect(toMidi('Cb3')).toEqual(47);
+    expect(toMidi('Cbb3')).toEqual(46);
+    expect(toMidi('C#3')).toEqual(49);
+    expect(toMidi('C#3')).toEqual(49);
+    expect(toMidi('C##3')).toEqual(50);
+  });
+  it('should throw an error when given a non-note', () => {
+    expect(() => toMidi('Q')).toThrowError(`not a note: "Q"`);
+    expect(() => toMidi('Z')).toThrowError(`not a note: "Z"`);
  });
 });
 describe('fromMidi', () => {
  it('should turn midi into frequency', () => {
-    assert.equal(fromMidi(69), 440);
-    assert.equal(fromMidi(57), 220);
+    expect(fromMidi(69)).toEqual(440);
+    expect(fromMidi(57)).toEqual(220);
  });
 });
 describe('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', () => {
  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('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);
  });
 });
@@ -4,21 +4,21 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-import { strict as assert } from 'assert';
+import { describe, it, expect } from 'vitest';
 import { map, valued, mul } from '../value.mjs';

 describe('Value', () => {
  it('unionWith', () => {
    const { value } = valued({ freq: 2000, distortion: 1.2 }).unionWith({ distortion: 2 }, mul);
-    assert.deepStrictEqual(value, { freq: 2000, distortion: 2.4 });
+    expect(value).toStrictEqual({ freq: 2000, distortion: 2.4 });
  });

  it('experiments', () => {
-    assert.equal(map(mul(5), valued(3)).value, 15);
-    assert.equal(map(mul(null), valued(3)).value, 0);
-    assert.equal(map(mul(3), valued(null)).value, null);
-    assert.equal(valued(3).map(mul).ap(3).value, 9);
-    assert.equal(valued(mul).ap(3).ap(3).value, 9);
-    assert.equal(valued(3).mul(3).value, 9);
+    expect(map(mul(5), valued(3)).value).toEqual(15);
+    expect(map(mul(null), valued(3)).value).toEqual(0);
+    expect(map(mul(3), valued(null)).value).toEqual(null);
+    expect(valued(3).map(mul).ap(3).value).toEqual(9);
+    expect(valued(mul).ap(3).ap(3).value).toEqual(9);
+    expect(valued(3).mul(3).value).toEqual(9);
  });
 });
@@ -0,0 +1,11 @@
+let time;
+export function getTime() {
+  if (!time) {
+    throw new Error('no time set! use setTime to define a time source');
+  }
+  return time();
+}
+
+export function setTime(func) {
+  time = func;
+}
@@ -18,6 +18,11 @@ export class TimeSpan {
    const end = this.end;
    const end_sam = end.sam();

+    // Support zero-width timespans
+    if (begin.equals(end)) {
+      return([new TimeSpan(begin, end)]);
+    }
+    
    while (end.gt(begin)) {
      // If begin and end are in the same cycle, we're done.
      if (begin.sam().equals(end_sam)) {
@@ -4,19 +4,14 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-import { Tone } from './tone.mjs';
-
-export const hideHeader = () => {
-  document.getElementById('header').style = 'display:none';
-};
+import { getTime } from './time.mjs';

 function frame(callback) {
  if (window.strudelAnimation) {
    cancelAnimationFrame(window.strudelAnimation);
  }
  const animate = (animationTime) => {
-    const toneTime = Tone.getTransport().seconds;
-    callback(animationTime, toneTime);
+    callback(animationTime, getTime());
    window.strudelAnimation = requestAnimationFrame(animate);
  };
  requestAnimationFrame(animate);
@@ -51,6 +46,7 @@ export const cleanupUi = () => {
  const container = document.getElementById('code');
  if (container) {
    container.style = '';
-    container.className = 'grow relative'; // has to match App.tsx
+    // TODO: find a way to remove that duplication..
+    container.className = 'grow flex text-gray-100 relative overflow-auto cursor-text pb-0'; // has to match App.tsx
  }
 };
@@ -5,12 +5,12 @@ This program is free software: you can redistribute it and/or modify it under th
 */

 // returns true if the given string is a note
-export const isNote = (name) => /^[a-gA-G][#b]*[0-9]$/.test(name);
+export const isNote = (name) => /^[a-gA-G][#bs]*[0-9]$/.test(name);
 export const tokenizeNote = (note) => {
  if (typeof note !== 'string') {
    return [];
  }
-  const [pc, acc = '', oct] = note.match(/^([a-gA-G])([#b]*)([0-9])?$/)?.slice(1) || [];
+  const [pc, acc = '', oct] = note.match(/^([a-gA-G])([#bs]*)([0-9])?$/)?.slice(1) || [];
  if (!pc) {
    return [];
  }
@@ -24,24 +24,52 @@ export const toMidi = (note) => {
    throw new Error('not a note: "' + note + '"');
  }
  const chroma = { c: 0, d: 2, e: 4, f: 5, g: 7, a: 9, b: 11 }[pc.toLowerCase()];
-  const offset = acc?.split('').reduce((o, char) => o + { '#': 1, b: -1 }[char], 0) || 0;
+  const offset = acc?.split('').reduce((o, char) => o + { '#': 1, b: -1, s: 1 }[char], 0) || 0;
  return (Number(oct) + 1) * 12 + chroma + offset;
 };
 export const fromMidi = (n) => {
  return Math.pow(2, (n - 69) / 12) * 440;
 };

+/**
+ * @deprecated does not appear to be referenced or invoked anywhere in the codebase
+ */
+export const getFreq = (noteOrMidi) => {
+  if (typeof noteOrMidi === 'number') {
+    return fromMidi(noteOrMidi);
+  }
+  return fromMidi(toMidi(noteOrMidi));
+};
+
+/**
+ * @deprecated does not appear to be referenced or invoked anywhere in the codebase
+ */
+export const midi2note = (n) => {
+  const oct = Math.floor(n / 12) - 1;
+  const pc = ['C', 'Db', 'D', 'Eb', 'E', 'F', 'Gb', 'G', 'Ab', 'A', 'Bb', 'B'][n % 12];
+  return pc + oct;
+};
+
 // modulo that works with negative numbers e.g. mod(-1, 3) = 2
 // const mod = (n: number, m: number): number => (n < 0 ? mod(n + m, m) : n % m);
 export const mod = (n, m) => ((n % m) + m) % m;

 export const getPlayableNoteValue = (hap) => {
-  let { value: note, context } = hap;
+  let { value, context } = hap;
+  let note = value;
+  if (typeof note === 'object' && !Array.isArray(note)) {
+    note = note.note || note.n || note.value;
+    if (note === undefined) {
+      throw new Error(`cannot find a playable note for ${JSON.stringify(value)}`);
+    }
+  }
  // if value is number => interpret as midi number as long as its not marked as frequency
  if (typeof note === 'number' && context.type !== 'frequency') {
    note = fromMidi(hap.value);
-  } else if (typeof note === 'string' && !isNote(note)) {
-    throw new Error('not a note: ' + note);
+  } else if (typeof note === 'number' && context.type === 'frequency') {
+    note = hap.value; // legacy workaround.. will be removed in the future
+  } else if (typeof note !== 'string' || !isNote(note)) {
+    throw new Error('not a note: ' + JSON.stringify(note));
  }
  return note;
 };
@@ -49,15 +77,18 @@ export const getPlayableNoteValue = (hap) => {
 export const getFrequency = (hap) => {
  let { value, context } = hap;
  // if value is number => interpret as midi number as long as its not marked as frequency
-  if (typeof value === 'object' && value.freq) {
-    return value.freq;
+  if (typeof value === 'object') {
+    if (value.freq) {
+      return value.freq;
+    }
+    return getFreq(value.note || value.n || value.value);
  }
  if (typeof value === 'number' && context.type !== 'frequency') {
    value = fromMidi(hap.value);
  } else if (typeof value === 'string' && isNote(value)) {
    value = fromMidi(toMidi(hap.value));
  } else if (typeof value !== 'number') {
-    throw new Error('not a note or frequency:' + value);
+    throw new Error('not a note or frequency: ' + value);
  }
  return value;
 };
@@ -106,3 +137,46 @@ export function curry(func, overload) {
  }
  return fn;
 }
+
+export function parseNumeral(numOrString) {
+  const asNumber = Number(numOrString);
+  if (!isNaN(asNumber)) {
+    return asNumber;
+  }
+  if (isNote(numOrString)) {
+    return toMidi(numOrString);
+  }
+  throw new Error(`cannot parse as numeral: "${numOrString}"`);
+}
+
+export function mapArgs(fn, mapFn) {
+  return (...args) => fn(...args.map(mapFn));
+}
+
+export function numeralArgs(fn) {
+  return mapArgs(fn, parseNumeral);
+}
+
+export function parseFractional(numOrString) {
+  const asNumber = Number(numOrString);
+  if (!isNaN(asNumber)) {
+    return asNumber;
+  }
+  const specialValue = {
+    pi: Math.PI,
+    w: 1,
+    h: 0.5,
+    q: 0.25,
+    e: 0.125,
+    s: 0.0625,
+    t: 1 / 3,
+    f: 0.2,
+    x: 1 / 6,
+  }[numOrString];
+  if (typeof specialValue !== 'undefined') {
+    return specialValue;
+  }
+  throw new Error(`cannot parse as fractional: "${numOrString}"`);
+}
+
+export const fractionalArgs = (fn) => mapArgs(fn, parseFractional);
@@ -0,0 +1,49 @@
+// will move to https://github.com/felixroos/zyklus
+// TODO: started flag
+
+function createClock(
+  getTime,
+  callback, // called slightly before each cycle
+  duration = 0.05, // duration of each cycle
+  interval = 0.1, // interval between callbacks
+  overlap = 0.1, // overlap between callbacks
+) {
+  let tick = 0; // counts callbacks
+  let phase = 0; // next callback time
+  let precision = 10 ** 4; // used to round phase
+  let minLatency = 0.01;
+  const setDuration = (setter) => (duration = setter(duration));
+  overlap = overlap || interval / 2;
+  const onTick = () => {
+    const t = getTime();
+    const lookahead = t + interval + overlap; // the time window for this tick
+    if (phase === 0) {
+      phase = t + minLatency;
+    }
+    // callback as long as we're inside the lookahead
+    while (phase < lookahead) {
+      phase = Math.round(phase * precision) / precision;
+      phase >= t && callback(phase, duration, tick);
+      phase < t && console.log('TOO LATE', phase); // what if latency is added from outside?
+      phase += duration; // increment phase by duration
+      tick++;
+    }
+  };
+  let intervalID;
+  const start = () => {
+    clear(); // just in case start was called more than once
+    onTick();
+    intervalID = setInterval(onTick, interval * 1000);
+  };
+  const clear = () => intervalID !== undefined && clearInterval(intervalID);
+  const pause = () => clear();
+  const stop = () => {
+    tick = 0;
+    phase = 0;
+    clear();
+  };
+  const getPhase = () => phase;
+  // setCallback
+  return { setDuration, start, stop, pause, duration, getPhase };
+}
+export default createClock;
@@ -10,16 +10,22 @@ Either install with `npm i @strudel.cycles/embed` or just use a cdn to import th
 <script src="https://unpkg.com/@strudel.cycles/embed@latest"></script>
 <strudel-repl>
  <!--
-      "a4 [a3 c3] a3 c3".color('#F9D649')
-    .sub("<7 12 5 12>".slow(2))
-    .off(1/4,x=>x.add(7).color("#FFFFFF #0C3AA1 #C63928"))
-    .off(1/8,x=>x.add(12).color('#215CB6'))
-    .slow(2)
-    .legato(sine.range(0.3, 2).slow(28))
-    .wave("sawtooth square".fast(2))
-    .filter('lowpass', cosine.range(500,4000).slow(16))
-    .out()
-    .pianoroll({minMidi:20,maxMidi:120,background:'#202124'})
+note(`[[e5 [b4 c5] d5 [c5 b4]]
+[a4 [a4 c5] e5 [d5 c5]]
+[b4 [~ c5] d5 e5]
+[c5 a4 a4 ~]
+[[~ d5] [~ f5] a5 [g5 f5]]
+[e5 [~ c5] e5 [d5 c5]]
+[b4 [b4 c5] d5 e5]
+[c5 a4 a4 ~]],
+[[e2 e3]*4]
+[[a2 a3]*4]
+[[g#2 g#3]*2 [e2 e3]*2]
+[a2 a3 a2 a3 a2 a3 b1 c2]
+[[d2 d3]*4]
+[[c2 c3]*4]
+[[b1 b2]*2 [e2 e3]*2]
+[[a1 a2]*4]`).slow(16)
      -->
 </strudel-repl>
 ```
@@ -2,15 +2,21 @@
 <!-- <script src="./embed.js"></script> -->
 <strudel-repl>
  <!--
-      "a4 [a3 c3] a3 c3".color('#F9D649')
-    .sub("<7 12 5 12>".slow(2))
-    .off(1/4,x=>x.add(7).color("#FFFFFF #0C3AA1 #C63928"))
-    .off(1/8,x=>x.add(12).color('#215CB6'))
-    .slow(2)
-    .legato(sine.range(0.3, 2).slow(28))
-    .wave("sawtooth square".fast(2))
-    .filter('lowpass', cosine.range(500,4000).slow(16))
-    .out()
-    .pianoroll({minMidi:20,maxMidi:120,background:'#202124'})
+note(`[[e5 [b4 c5] d5 [c5 b4]]
+[a4 [a4 c5] e5 [d5 c5]]
+[b4 [~ c5] d5 e5]
+[c5 a4 a4 ~]
+[[~ d5] [~ f5] a5 [g5 f5]]
+[e5 [~ c5] e5 [d5 c5]]
+[b4 [b4 c5] d5 e5]
+[c5 a4 a4 ~]],
+[[e2 e3]*4]
+[[a2 a3]*4]
+[[g#2 g#3]*2 [e2 e3]*2]
+[a2 a3 a2 a3 a2 a3 b1 c2]
+[[d2 d3]*4]
+[[c2 c3]*4]
+[[b1 b2]*2 [e2 e3]*2]
+[[a1 a2]*4]`).slow(16)
      -->
 </strudel-repl>
@@ -1,6 +1,6 @@
 {
  "name": "@strudel.cycles/embed",
-  "version": "0.1.1",
+  "version": "0.2.0",
  "description": "Embeddable Web Component to load a Strudel REPL into an iframe",
  "main": "embed.js",
  "type": "module",
@@ -11,10 +11,9 @@ npm i @strudel.cycles/eval --save

 ## Example

-<!-- TODO: -extend +evalScope -->
-
 ```js
-import { evaluate, extend } from '@strudel.cycles/eval';
+import { evalScope } from '@strudel.cycles/core';
+import { evaluate } from '@strudel.cycles/eval';

 evalScope(
  import('@strudel.cycles/core'),
@@ -4,46 +4,9 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

+import { evaluate as _evaluate } from '@strudel.cycles/core';
 import shapeshifter from './shapeshifter.mjs';
-import * as strudel from '@strudel.cycles/core';
-
-const { isPattern, Pattern } = strudel;
-
-export const extend = (...args) => {
-  console.warn('@strudel.cycles/eval extend is deprecated, please use evalScope instead');
-  Object.assign(globalThis, ...args);
-};
-
-let scoped = false;
-export const evalScope = async (...args) => {
-  if (scoped) {
-    console.warn('@strudel.cycles/eval evalScope was called more than once.');
-  }
-  scoped = true;
-  const results = await Promise.allSettled(args);
-  const modules = results.filter((result) => result.status === 'fulfilled').map((r) => r.value);
-  results.forEach((result, i) => {
-    if (result.status === 'rejected') {
-      console.warn(`evalScope: module with index ${i} could not be loaded:`, result.reason);
-    }
-  });
-  Object.assign(globalThis, ...modules, Pattern.prototype.bootstrap());
-};
-
-function safeEval(str) {
-  return Function('"use strict";return (' + str + ')')();
-}

 export const evaluate = async (code) => {
-  if (!scoped) {
-    await evalScope(); // at least scope Pattern.prototype.boostrap
-  }
-  const shapeshifted = shapeshifter(code); // transform syntactically correct js code to semantically usable code
-  let evaluated = await safeEval(shapeshifted);
-  if (!isPattern(evaluated)) {
-    console.log('evaluated', evaluated);
-    const message = `got "${typeof evaluated}" instead of pattern`;
-    throw new Error(message + (typeof evaluated === 'function' ? ', did you forget to call a function?' : '.'));
-  }
-  return { mode: 'javascript', pattern: evaluated };
+  return _evaluate(code, shapeshifter);
 };
@@ -1,6 +1,6 @@
 {
 	"name": "@strudel.cycles/eval",
-	"version": "0.1.3",
+	"version": "0.4.0",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
@@ -1,6 +1,6 @@
 {
  "name": "@strudel.cycles/eval",
-  "version": "0.1.3",
+  "version": "0.4.0",
  "description": "Code evaluator for strudel",
  "main": "index.mjs",
  "type": "module",
@@ -8,7 +8,7 @@
    "test": "test"
  },
  "scripts": {
-    "test": "mocha --colors"
+    "test": "vitest run"
  },
  "repository": {
    "type": "git",
@@ -28,12 +28,12 @@
  },
  "homepage": "https://github.com/tidalcycles/strudel#readme",
  "dependencies": {
-    "@strudel.cycles/core": "^0.1.2",
+    "@strudel.cycles/core": "^0.4.0",
    "estraverse": "^5.3.0",
-    "shift-ast": "^6.1.0",
-    "shift-codegen": "^7.0.3",
-    "shift-parser": "^7.0.3",
-    "shift-spec": "^2018.0.2",
+    "shift-ast": "^7.0.0",
+    "shift-codegen": "^8.1.0",
+    "shift-parser": "^8.0.0",
+    "shift-spec": "^2019.0.0",
    "shift-traverser": "^1.0.0"
  }
 }
@@ -30,11 +30,12 @@ const isNote = (name) => /^[a-gC-G][bs]?[0-9]$/.test(name);
 const addLocations = true;
 export const addMiniLocations = true;
 export const minifyStrings = true;
-export const wrappedAsync = true;
+export const wrappedAsync = false; // this is now handled by core evaluate by default
+export const shouldAddReturn = true;

 export default (_code) => {
  const { code, addReturn } = wrapAsync(_code);
-  const ast = parseScriptWithLocation(code);
+  const ast = parseScriptWithLocation(disguiseImports(code));
  const artificialNodes = [];
  const parents = [];
  const shifted = replace(ast.tree, {
@@ -125,13 +126,25 @@ export default (_code) => {
    },
  });
  // add return to last statement (because it's wrapped in an async function artificially)
-  if (wrappedAsync) {
+  if (shouldAddReturn) {
    addReturn(shifted);
  }
-  const generated = codegen(shifted);
+  const generated = undisguiseImports(codegen(shifted));
  return generated;
 };

+// renames all import statements to "_mport" as Shift doesn't support dynamic import.
+// there shouldn't be any side-effects from this as this change does not affect
+// the syntax & will be undone by the equivalent replace in "undisguiseImports".
+function disguiseImports(code) {
+  return code.replaceAll('import', '_mport'); // Must be the same length!
+}
+
+// Rename the renamed import statements back to "import"
+function undisguiseImports(code) {
+  return code.replaceAll('_mport', 'import');
+}
+
 function wrapAsync(code) {
  // wrap code in async to make await work on top level => this will create 1 line offset to locations
  // this is why line offset is -1 in getLocationObject calls below
@@ -141,7 +154,7 @@ ${code}
 })()`;
  }
  const addReturn = (ast) => {
-    const body = ast.statements[0].expression.callee.body; // actual code ast inside async function body
+    const body = wrappedAsync ? ast.statements[0].expression.callee.body : ast;
    body.statements = body.statements
      .slice(0, -1)
      .concat([new ReturnStatement({ expression: body.statements.slice(-1)[0] })]);
@@ -4,31 +4,29 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-import { strict as assert } from 'assert';
-import { evaluate, extend } from '../evaluate.mjs';
+import { expect, describe, it } from 'vitest';
+
+import { evaluate } from '../evaluate.mjs';
 import { mini } from '@strudel.cycles/mini';
 import * as strudel from '@strudel.cycles/core';
+const { fastcat, evalScope } = strudel;

-const { fastcat } = strudel;
-
-extend({ mini }, strudel);
-// TODO: test evalScope
-
-describe('evaluate', () => {
-  const ev = async (code) => (await evaluate(code)).pattern._firstCycleValues;
+describe('evaluate', async () => {
+  await evalScope({ mini }, strudel);
+  const ev = async (code) => (await evaluate(code)).pattern.firstCycleValues;
  it('Should evaluate strudel functions', async () => {
-    assert.deepStrictEqual(await ev("pure('c3')"), ['c3']);
-    assert.deepStrictEqual(await ev('cat(c3)'), ['c3']);
-    assert.deepStrictEqual(await ev('fastcat(c3, d3)'), ['c3', 'd3']);
-    assert.deepStrictEqual(await ev('slowcat(c3, d3)'), ['c3']);
+    expect(await ev('pure("c3")')).toEqual(['c3']);
+    expect(await ev('cat("c3")')).toEqual(['c3']);
+    expect(await ev('fastcat("c3", "d3")')).toEqual(['c3', 'd3']);
+    expect(await ev('slowcat("c3", "d3")')).toEqual(['c3']);
  });
-  it('Should be extendable', async () => {
-    extend({ myFunction: (...x) => fastcat(...x) });
-    assert.deepStrictEqual(await ev('myFunction(c3, d3)'), ['c3', 'd3']);
+  it('Scope should be extendable', async () => {
+    await evalScope({ myFunction: (...x) => fastcat(...x) });
+    expect(await ev('myFunction("c3", "d3")')).toEqual(['c3', 'd3']);
  });
  it('Should evaluate simple double quoted mini notation', async () => {
-    assert.deepStrictEqual(await ev('"c3"'), ['c3']);
-    assert.deepStrictEqual(await ev('"c3 d3"'), ['c3', 'd3']);
-    assert.deepStrictEqual(await ev('"<c3 d3>"'), ['c3']);
+    expect(await ev('"c3"')).toEqual(['c3']);
+    expect(await ev('"c3 d3"')).toEqual(['c3', 'd3']);
+    expect(await ev('"<c3 d3>"')).toEqual(['c3']);
  });
 });
@@ -4,11 +4,22 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-import { strict as assert } from 'assert';
-import shapeshifter from '../shapeshifter.mjs';
+import { describe, it, expect } from 'vitest';
+import shapeshifter, { wrappedAsync } from '../shapeshifter.mjs';

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

-import { isNote } from 'tone';
-import _WebMidi from 'webmidi';
-import { Pattern, isPattern } from '@strudel.cycles/core';
-import { Tone } from '@strudel.cycles/tone';
+import * as _WebMidi from 'webmidi';
+import { Pattern, isPattern, isNote, getPlayableNoteValue, logger } from '@strudel.cycles/core';
+import { getAudioContext } from '@strudel.cycles/webaudio';

 // if you use WebMidi from outside of this package, make sure to import that instance:
-export const WebMidi = _WebMidi;
+export const { WebMidi } = _WebMidi;

-export function enableWebMidi() {
+export function enableWebMidi(options = {}) {
+  const { onReady, onConnected, onDisconnected } = options;
+
+  if (typeof navigator.requestMIDIAccess !== 'function') {
+    throw new Error('Your Browser does not support WebMIDI.');
+  }
  return new Promise((resolve, reject) => {
    if (WebMidi.enabled) {
      // if already enabled, just resolve WebMidi
@@ -23,6 +27,14 @@ export function enableWebMidi() {
      if (err) {
        reject(err);
      }
+      WebMidi.addListener('connected', (e) => {
+        onConnected?.(WebMidi);
+      });
+      // Reacting when a device becomes unavailable
+      WebMidi.addListener('disconnected', (e) => {
+        onDisconnected?.(WebMidi, e);
+      });
+      onReady?.(WebMidi);
      resolve(WebMidi);
    });
  });
@@ -31,7 +43,21 @@ export function enableWebMidi() {
 const outputByName = (name) => WebMidi.getOutputByName(name);

 // Pattern.prototype.midi = function (output: string | number, channel = 1) {
-Pattern.prototype.midi = function (output, channel = 1) {
+Pattern.prototype.midi = async function (output, channel = 1) {
+  await enableWebMidi({
+    onConnected: ({ outputs }) =>
+      logger(`Midi device connected! Available: ${outputs.map((o) => `'${o.name}'`).join(', ')}`),
+    onDisconnected: ({ outputs }) =>
+      logger(`Midi device disconnected! Available: ${outputs.map((o) => `'${o.name}'`).join(', ')}`),
+    onReady: ({ outputs }) => {
+      const chosenOutput = output ?? outputs[0];
+      const otherOutputs = outputs
+        .filter((o) => o.name !== chosenOutput.name)
+        .map((o) => `'${o.name}'`)
+        .join(' | ');
+      logger(`Midi connected! Using "${chosenOutput.name}". ${otherOutputs ? `Also available: ${otherOutputs}` : ''}`);
+    },
+  });
  if (isPattern(output?.constructor?.name)) {
    throw new Error(
      `.midi does not accept Pattern input. Make sure to pass device name with single quotes. Example: .midi('${
@@ -39,46 +65,42 @@ Pattern.prototype.midi = function (output, channel = 1) {
      }')`,
    );
  }
-  return this._withHap((hap) => {
-    // const onTrigger = (time: number, hap: any) => {
-    const onTrigger = (time, hap) => {
-      let note = hap.value;
-      const velocity = hap.context?.velocity ?? 0.9;
-      if (!isNote(note)) {
-        throw new Error('not a note: ' + note);
-      }
-      if (!WebMidi.enabled) {
-        throw new Error(`🎹 WebMidi is not enabled. Supported Browsers: https://caniuse.com/?search=webmidi`);
-      }
-      if (!WebMidi.outputs.length) {
-        throw new Error(`🔌 No MIDI devices found. Connect a device or enable IAC Driver.`);
-      }
-      let device;
-      if (typeof output === 'number') {
-        device = WebMidi.outputs[output];
-      } else if (typeof output === 'string') {
-        device = outputByName(output);
-      } else {
-        device = WebMidi.outputs[0];
-      }
-      if (!device) {
-        throw new Error(
-          `🔌 MIDI device '${output ? output : ''}' not found. Use one of ${WebMidi.outputs
-            .map((o) => `'${o.name}'`)
-            .join(' | ')}`,
-        );
-      }
-      // console.log('midi', value, output);
-      const timingOffset = WebMidi.time - Tone.getContext().currentTime * 1000;
-      time = time * 1000 + timingOffset;
-      // const inMs = '+' + (time - Tone.getContext().currentTime) * 1000;
-      // await enableWebMidi()
-      device.playNote(note, channel, {
-        time,
-        duration: hap.duration.valueOf() * 1000 - 5,
-        velocity,
-      });
-    };
-    return hap.setContext({ ...hap.context, onTrigger });
+  return this.onTrigger((time, hap) => {
+    let note = getPlayableNoteValue(hap);
+    const velocity = hap.context?.velocity ?? 0.9;
+    if (!isNote(note)) {
+      throw new Error('not a note: ' + note);
+    }
+    if (!WebMidi.enabled) {
+      throw new Error(`🎹 WebMidi is not enabled. Supported Browsers: https://caniuse.com/?search=webmidi`);
+    }
+    if (!WebMidi.outputs.length) {
+      throw new Error(`🔌 No MIDI devices found. Connect a device or enable IAC Driver.`);
+    }
+    let device;
+    if (typeof output === 'number') {
+      device = WebMidi.outputs[output];
+    } else if (typeof output === 'string') {
+      device = outputByName(output);
+    } else {
+      device = WebMidi.outputs[0];
+    }
+    if (!device) {
+      throw new Error(
+        `🔌 MIDI device '${output ? output : ''}' not found. Use one of ${WebMidi.outputs
+          .map((o) => `'${o.name}'`)
+          .join(' | ')}`,
+      );
+    }
+    // console.log('midi', value, output);
+    const timingOffset = WebMidi.time - getAudioContext().currentTime * 1000;
+    time = time * 1000 + timingOffset;
+    // const inMs = '+' + (time - Tone.getContext().currentTime) * 1000;
+    // await enableWebMidi()
+    device.playNote(note, channel, {
+      time,
+      duration: hap.duration.valueOf() * 1000 - 5,
+      attack: velocity,
+    });
  });
 };
@@ -1,6 +1,6 @@
 {
 	"name": "@strudel.cycles/midi",
-	"version": "0.1.3",
+	"version": "0.4.0",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
@@ -1,6 +1,6 @@
 {
  "name": "@strudel.cycles/midi",
-  "version": "0.1.3",
+  "version": "0.4.0",
  "description": "Midi API for strudel",
  "main": "index.mjs",
  "repository": {
@@ -21,8 +21,8 @@
  },
  "homepage": "https://github.com/tidalcycles/strudel#readme",
  "dependencies": {
-    "@strudel.cycles/tone": "^0.1.3",
+    "@strudel.cycles/tone": "^0.4.0",
    "tone": "^14.7.77",
-    "webmidi": "^2.5.2"
+    "webmidi": "^3.0.21"
  }
 }
@@ -33,3 +33,12 @@ yields:
 ## Mini Notation API

 See "Mini Notation" in the [Strudel Tutorial](https://strudel.tidalcycles.org/tutorial/)
+
+## Building the Parser
+
+The parser [krill-parser.js] is generated from [krill.pegjs](./krill.pegjs) using [peggy](https://peggyjs.org/).
+To generate the parser, run
+
+```js
+npm run build:parser
+```
@@ -8,6 +8,7 @@ This program is free software: you can redistribute it and/or modify it under th
 // a sequence = a serie of elements placed between quotes
 // a stack = a serie of vertically aligned slices sharing the same overall length
 // a slice = a serie of horizontally aligned elements
+// a choose = a serie of elements, one of which is chosen at random


 {
@@ -81,17 +82,18 @@ DIGIT  = [0-9]
 // ------------------ delimiters ---------------------------

 ws "whitespace" = [ \n\r\t]*
-comma = ws "," ws;
+comma = ws "," ws
+pipe = ws "|" ws
 quote = '"' / "'"

 // ------------------ steps and cycles ---------------------------

 // single step definition (e.g bd)
-step_char =  [0-9a-zA-Z~] / "-" / "#" / "." / "^" / "_"
+step_char =  [0-9a-zA-Z~] / "-" / "#" / "." / "^" / "_" / ":"
 step = ws chars:step_char+ ws { return chars.join("") }

 // define a sub cycle e.g. [1 2, 3 [4]]
-sub_cycle = ws  "[" ws s:stack ws "]" ws { return s}
+sub_cycle = ws  "[" ws s:stack_or_choose ws "]" ws { return s}

 // define a timeline e.g <1 3 [3 5]>. We simply defer to a stack and change the alignement
 timeline = ws "<" ws sc:single_cycle ws ">" ws
@@ -102,7 +104,7 @@ slice = step / sub_cycle  / timeline

 // slice modifier affects the timing/size of a slice (e.g. [a b c]@3)
 // at this point, we assume we can represent them as regular sequence operators
-slice_modifier = slice_weight / slice_bjorklund / slice_slow / slice_fast / slice_fixed_step / slice_replicate
+slice_modifier = slice_weight / slice_bjorklund / slice_slow / slice_fast / slice_fixed_step / slice_replicate / slice_degrade

 slice_weight =  "@" a:number
  { return { weight: a} }
@@ -122,6 +124,9 @@ slice_fast = "*"a:number
 slice_fixed_step = "%"a:number
  { return { operator : { type_: "fixed-step", arguments_ :{ amount:a } } } }

+slice_degrade = "?"a:number?
+  { return { operator : { type_: "degradeBy", arguments_ :{ amount:(a? a : 0.5) } } } }
+
 // a slice with an modifier applied i.e [bd@4 sd@3]@2 hh]
 slice_with_modifier = s:slice o:slice_modifier?
  { return new ElementStub(s, o);}
@@ -132,14 +137,22 @@ single_cycle = s:(slice_with_modifier)+
  { return new PatternStub(s,"h"); }

 // a stack is a serie of vertically aligned single cycles, separated by a comma
+stack_tail = tail:(comma @single_cycle)+
+  { return { alignment: 'v', list: tail }; }
+
+// a choose is a serie of pipe-separated single cycles, one of which is chosen
+// at random each time through the pattern
+choose_tail = tail:(pipe @single_cycle)+
+  { return { alignment: 'r', list: tail }; }
+
 // if the stack contains only one element, we don't create a stack but return the
 // underlying element
-stack = c:single_cycle cs:(comma v:single_cycle { return v})*
-  { if (cs.length == 0 && c instanceof Object) { return c;} else { cs.unshift(c); return new PatternStub(cs,"v");}  }
+stack_or_choose = head:single_cycle tail:(stack_tail / choose_tail)?
+  { if (tail && tail.list.length > 0) { return new PatternStub([head, ...tail.list], tail.alignment); } else { return head; } }

 // a sequence is a quoted stack
-sequence = ws quote s:stack quote
-  { return s; }
+sequence = ws quote sc:stack_or_choose quote
+  { return sc; }

 // ------------------ operators ---------------------------

@@ -6,10 +6,17 @@ This program is free software: you can redistribute it and/or modify it under th

 import * as krill from './krill-parser.js';
 import * as strudel from '@strudel.cycles/core';
-import { addMiniLocations } from '@strudel.cycles/eval/shapeshifter.mjs';
+// import { addMiniLocations } from '@strudel.cycles/eval/shapeshifter.mjs';

 const { pure, Pattern, Fraction, stack, slowcat, sequence, timeCat, silence, reify } = strudel;

+var _seedState = 0;
+const randOffset = 0.0002;
+
+function _nextSeed() {
+  return _seedState++;
+}
+
 const applyOptions = (parent) => (pat, i) => {
  const ast = parent.source_[i];
  const options = ast.options_;
@@ -21,6 +28,11 @@ const applyOptions = (parent) => (pat, i) => {
        return reify(pat).fast(speed);
      case 'bjorklund':
        return pat.euclid(operator.arguments_.pulse, operator.arguments_.step, operator.arguments_.rotation);
+      case 'degradeBy':
+        return reify(pat)._degradeByWith(
+          strudel.rand.early(randOffset * _nextSeed()).segment(1),
+          operator.arguments_.amount,
+        );
      // TODO: case 'fixed-step': "%"
    }
    console.warn(`operator "${operator.type_}" not implemented`);
@@ -82,6 +94,9 @@ export function patternifyAST(ast) {
      if (alignment === 'v') {
        return stack(...children);
      }
+      if (alignment === 'r') {
+        return strudel.chooseInWith(strudel.rand.early(randOffset * _nextSeed()).segment(1), children);
+      }
      const weightedChildren = ast.source_.some((child) => !!child.options_?.weight);
      if (!weightedChildren && alignment === 't') {
        return slowcat(...children);
@@ -100,9 +115,9 @@ export function patternifyAST(ast) {
        return silence;
      }
      if (typeof ast.source_ !== 'object') {
-        if (!addMiniLocations) {
+        /* if (!addMiniLocations) {
          return ast.source_;
-        }
+        } */
        if (!ast.location_) {
          console.warn('no location for', ast);
          return ast.source_;
@@ -1,11 +1,12 @@
 {
  "name": "@strudel.cycles/mini",
-  "version": "0.1.3",
+  "version": "0.4.0",
  "description": "Mini notation for strudel",
  "main": "index.mjs",
  "type": "module",
  "scripts": {
-    "test": "mocha --colors"
+    "test": "vitest run",
+    "build:parser": "peggy -o krill-parser.js --format es ./krill.pegjs"
  },
  "repository": {
    "type": "git",
@@ -25,8 +26,11 @@
  },
  "homepage": "https://github.com/tidalcycles/strudel#readme",
  "dependencies": {
-    "@strudel.cycles/core": "^0.1.2",
-    "@strudel.cycles/eval": "^0.1.3",
-    "@strudel.cycles/tone": "^0.1.3"
+    "@strudel.cycles/core": "^0.4.0",
+    "@strudel.cycles/eval": "^0.4.0",
+    "@strudel.cycles/tone": "^0.4.0"
+  },
+  "devDependencies": {
+    "peggy": "^2.0.1"
  }
 }
@@ -4,50 +4,104 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-import { strict as assert } from 'assert';
 import { mini } from '../mini.mjs';
 import '@strudel.cycles/core/euclid.mjs';
+import { describe, expect, it } from 'vitest';

 describe('mini', () => {
-  const minV = (v) => mini(v)._firstCycleValues;
-  const minS = (v) => mini(v)._showFirstCycle;
+  const minV = (v) => mini(v).firstCycleValues;
+  const minS = (v) => mini(v).showFirstCycle;
  it('supports single elements', () => {
-    assert.deepStrictEqual(minV('a'), ['a']);
+    expect(minV('a')).toEqual(['a']);
  });
  it('supports rest', () => {
-    assert.deepStrictEqual(minV('~'), []);
+    expect(minV('~')).toEqual([]);
  });
  it('supports cat', () => {
-    assert.deepStrictEqual(minS('a b'), ['a: 0 - 1/2', 'b: 1/2 - 1']);
-    assert.deepStrictEqual(minS('a b c'), ['a: 0 - 1/3', 'b: 1/3 - 2/3', 'c: 2/3 - 1']);
+    expect(minS('a b')).toEqual(['a: 0 - 1/2', 'b: 1/2 - 1']);
+    expect(minS('a b c')).toEqual(['a: 0 - 1/3', 'b: 1/3 - 2/3', 'c: 2/3 - 1']);
  });
  it('supports slowcat', () => {
-    assert.deepStrictEqual(minV('<a b>'), ['a']);
+    expect(minV('<a b>')).toEqual(['a']);
  });
  it('supports division', () => {
-    assert.deepStrictEqual(minS('a/2'), ['a: 0 - 2']);
-    assert.deepStrictEqual(minS('[c3 d3]/2'), ['c3: 0 - 1']);
+    expect(minS('a/2')).toEqual(['a: 0 - 2']);
+    expect(minS('[c3 d3]/2')).toEqual(['c3: 0 - 1']);
  });
  it('supports multiplication', () => {
-    assert.deepStrictEqual(minS('c3*2'), ['c3: 0 - 1/2', 'c3: 1/2 - 1']);
-    assert.deepStrictEqual(minV('[c3 d3]*2'), ['c3', 'd3', 'c3', 'd3']);
+    expect(minS('c3*2')).toEqual(['c3: 0 - 1/2', 'c3: 1/2 - 1']);
+    expect(minV('[c3 d3]*2')).toEqual(['c3', 'd3', 'c3', 'd3']);
  });
  it('supports brackets', () => {
-    assert.deepStrictEqual(minS('c3 [d3 e3]'), ['c3: 0 - 1/2', 'd3: 1/2 - 3/4', 'e3: 3/4 - 1']);
-    assert.deepStrictEqual(minS('c3 [d3 [e3 f3]]'), ['c3: 0 - 1/2', 'd3: 1/2 - 3/4', 'e3: 3/4 - 7/8', 'f3: 7/8 - 1']);
+    expect(minS('c3 [d3 e3]')).toEqual(['c3: 0 - 1/2', 'd3: 1/2 - 3/4', 'e3: 3/4 - 1']);
+    expect(minS('c3 [d3 [e3 f3]]')).toEqual(['c3: 0 - 1/2', 'd3: 1/2 - 3/4', 'e3: 3/4 - 7/8', 'f3: 7/8 - 1']);
  });
  it('supports commas', () => {
-    assert.deepStrictEqual(minS('c3,e3,g3'), ['c3: 0 - 1', 'e3: 0 - 1', 'g3: 0 - 1']);
-    assert.deepStrictEqual(minS('[c3,e3,g3] f3'), ['c3: 0 - 1/2', 'e3: 0 - 1/2', 'g3: 0 - 1/2', 'f3: 1/2 - 1']);
+    expect(minS('c3,e3,g3')).toEqual(['c3: 0 - 1', 'e3: 0 - 1', 'g3: 0 - 1']);
+    expect(minS('[c3,e3,g3] f3')).toEqual(['c3: 0 - 1/2', 'e3: 0 - 1/2', 'g3: 0 - 1/2', 'f3: 1/2 - 1']);
  });
  it('supports elongation', () => {
-    assert.deepStrictEqual(minS('a@3 b'), ['a: 0 - 3/4', 'b: 3/4 - 1']);
-    assert.deepStrictEqual(minS('a@2 b@3'), ['a: 0 - 2/5', 'b: 2/5 - 1']);
+    expect(minS('a@3 b')).toEqual(['a: 0 - 3/4', 'b: 3/4 - 1']);
+    expect(minS('a@2 b@3')).toEqual(['a: 0 - 2/5', 'b: 2/5 - 1']);
  });
  it('supports replication', () => {
-    assert.deepStrictEqual(minS('a!3 b'), ['a: 0 - 1/4', 'a: 1/4 - 1/2', 'a: 1/2 - 3/4', 'b: 3/4 - 1']);
+    expect(minS('a!3 b')).toEqual(['a: 0 - 1/4', 'a: 1/4 - 1/2', 'a: 1/2 - 3/4', 'b: 3/4 - 1']);
  });
  it('supports euclidean rhythms', () => {
-    assert.deepStrictEqual(minS('a(3, 8)'), ['a: 0 - 1/8', 'a: 3/8 - 1/2', 'a: 3/4 - 7/8']);
+    expect(minS('a(3, 8)')).toEqual(['a: 0 - 1/8', 'a: 3/8 - 1/2', 'a: 3/4 - 7/8']);
+  });
+  it('supports the ? operator', () => {
+    expect(
+      mini('a?')
+        .queryArc(0, 20)
+        .map((hap) => hap.whole.begin),
+    ).toEqual(
+      mini('a')
+        .degradeBy(0.5)
+        .queryArc(0, 20)
+        .map((hap) => hap.whole.begin),
+    );
+  });
+  // testing things that involve pseudo-randomness, so there's a probability we could fail by chance.
+  // these next few tests work with the current PRNG, and are intended to succeed with p > 0.99 even if the PRNG changes
+  //   (as long as the PRNG has a relatively-uniform distribution of values)
+  it('supports degradeBy with default of 50%', () => {
+    const haps = mini('a?').queryArc(0, 1000);
+    expect(459 <= haps.length && haps.length <= 541).toBe(true);
+    // 'Number of elements did not fall in 99% confidence interval for binomial with p=0.5',
+  });
+  it('supports degradeBy with an argument', () => {
+    const haps = mini('a?0.8').queryArc(0, 1000);
+    expect(haps.length > 0).toBe(true);
+    // 'Should have had at least one element when degradeBy was set at 0.8');
+    expect(haps.length < 230).toBe(true);
+    // 'Had too many cycles remaining after degradeBy 0.8');
+  });
+  it('supports the random choice operator ("|") with nesting', () => {
+    const numCycles = 900;
+    const haps = mini('a | [b | c] | [d | e | f]').queryArc(0, numCycles);
+    // Should have about 1/3 a, 1/6 each of b | c, and 1/9 each of d | e | f.
+    // Evaluating this distribution with a chi-squared test.
+    // Note: this just evaluates the overall distribution, not things like correlation/runs of values
+    const observed = haps.reduce((acc, hap) => {
+      acc[hap.value] = (acc[hap.value] || 0) + 1;
+      return acc;
+    }, {});
+    const expected = {
+      a: numCycles / 3,
+      b: numCycles / 6,
+      c: numCycles / 6,
+      d: numCycles / 9,
+      e: numCycles / 9,
+      f: numCycles / 9,
+    };
+    let chisq = -numCycles;
+    for (let k in expected) {
+      chisq += (observed[k] * observed[k]) / expected[k];
+    }
+    // 15.086 is the chisq for 5 degrees of freedom at 99%, so for 99% of uniformly-distributed
+    //  PRNG, this test should succeed
+    expect(chisq <= 15.086).toBe(true);
+    // assert(chisq <= 15.086, chisq + ' was expected to be less than 15.086 under chi-squared test');
  });
 });
@@ -35,3 +35,5 @@ s("<bd sd> hh").osc()
 ```

 or just [click here](http://localhost:3000/#cygiPGJkIHNkPiBoaCIpLm9zYygp)...
+
+You can read more about [how to use Superdirt with Strudel the Tutorial](https://strudel.tidalcycles.org/tutorial/#superdirt-api)
@@ -5,10 +5,34 @@ This program is free software: you can redistribute it and/or modify it under th
 */

 import OSC from 'osc-js';
-import { Pattern } from '@strudel.cycles/core';
+import { logger, parseNumeral, Pattern } from '@strudel.cycles/core';
+
+let connection; // Promise<OSC>
+function connect() {
+  if (!connection) {
+    // make sure this runs only once
+    connection = new Promise((resolve, reject) => {
+      const osc = new OSC();
+      osc.open();
+      osc.on('open', () => {
+        const url = osc.options?.plugin?.socket?.url;
+        logger(`[osc] connected${url ? ` to ${url}` : ''}`);
+        resolve(osc);
+      });
+      osc.on('close', () => {
+        connection = undefined; // allows new connection afterwards
+        console.log('[osc] disconnected');
+        reject('OSC connection closed');
+      });
+      osc.on('error', (err) => reject(err));
+    }).catch((err) => {
+      connection = undefined;
+      throw new Error('Could not connect to OSC server. Is it running?');
+    });
+  }
+  return connection;
+}

-const comm = new OSC();
-comm.open();
 const latency = 0.1;
 let startedAt = -1;

@@ -20,24 +44,25 @@ let startedAt = -1;
 * @memberof Pattern
 * @returns Pattern
 */
-Pattern.prototype.osc = function () {
-  return this._withHap((hap) => {
-    const onTrigger = (time, hap, currentTime, cps) => {
-      const cycle = hap.wholeOrPart().begin.valueOf();
-      const delta = hap.duration.valueOf();
-      // time should be audio time of onset
-      // currentTime should be current time of audio context (slightly before time)
-      if (startedAt < 0) {
-        startedAt = Date.now() - currentTime * 1000;
-      }
-      const controls = Object.assign({}, { cps, cycle, delta }, hap.value);
-      const keyvals = Object.entries(controls).flat();
-      const ts = Math.floor(startedAt + (time + latency) * 1000);
-      const message = new OSC.Message('/dirt/play', ...keyvals);
-      const bundle = new OSC.Bundle([message], ts);
-      bundle.timestamp(ts); // workaround for https://github.com/adzialocha/osc-js/issues/60
-      comm.send(bundle);
-    };
-    return hap.setContext({ ...hap.context, onTrigger });
+Pattern.prototype.osc = async function () {
+  const osc = await connect();
+  return this.onTrigger((time, hap, currentTime, cps = 1) => {
+    const cycle = hap.wholeOrPart().begin.valueOf();
+    const delta = hap.duration.valueOf();
+    // time should be audio time of onset
+    // currentTime should be current time of audio context (slightly before time)
+    if (startedAt < 0) {
+      startedAt = Date.now() - currentTime * 1000;
+    }
+    const controls = Object.assign({}, { cps, cycle, delta }, hap.value);
+    // make sure n and note are numbers
+    controls.n && (controls.n = parseNumeral(controls.n));
+    controls.note && (controls.note = parseNumeral(controls.note));
+    const keyvals = Object.entries(controls).flat();
+    const ts = Math.floor(startedAt + (time + latency) * 1000);
+    const message = new OSC.Message('/dirt/play', ...keyvals);
+    const bundle = new OSC.Bundle([message], ts);
+    bundle.timestamp(ts); // workaround for https://github.com/adzialocha/osc-js/issues/60
+    osc.send(bundle);
  });
 };
@@ -1,6 +1,6 @@
 {
 	"name": "@strudel.cycles/osc",
-	"version": "0.1.1",
+	"version": "0.3.0",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
@@ -1,13 +1,14 @@
 {
  "name": "@strudel.cycles/osc",
-  "version": "0.1.1",
+  "version": "0.3.0",
  "description": "OSC messaging for strudel",
  "main": "osc.mjs",
  "scripts": {
    "test": "echo \"No tests present.\" && exit 0",
    "server": "node server.js",
    "tidal-sniffer": "node tidal-sniffer.js",
-    "client": "npx serve -p 4321"
+    "client": "npx serve -p 4321",
+    "build": "npx pkg server.js --targets node16-macos-x64,node16-win-x64,node16-linux-x64 --out-path bin"
  },
  "repository": {
    "type": "git",
@@ -30,6 +31,9 @@
  },
  "homepage": "https://github.com/tidalcycles/strudel#readme",
  "dependencies": {
-    "osc-js": "^2.3.2"
+    "osc-js": "^2.4.0"
+  },
+  "devDependencies": {
+    "pkg": "^5.7.0"
  }
 }
@@ -0,0 +1 @@
+examples
@@ -1,4 +1,43 @@
 # @strudel.cycles/react

-This package contains react hooks and components for strudel.
-Example coming soon
+This package contains react hooks and components for strudel. It is used internally by the Strudel REPL.
+
+## Install
+
+```js
+npm i @strudel.cycles/react
+```
+
+## Usage
+
+Here is a minimal example of how to set up a MiniRepl:
+
+```jsx
+import { evalScope, controls } from '@strudel.cycles/core';
+import { MiniRepl } from '@strudel.cycles/react';
+import { prebake } from '../repl/src/prebake.mjs';
+
+evalScope(
+  controls,
+  import('@strudel.cycles/core'),
+  import('@strudel.cycles/tonal'),
+  import('@strudel.cycles/mini'),
+  import('@strudel.cycles/webaudio'),
+  /* probably import other strudel packages */
+);
+
+prebake();
+
+export function Repl({ tune }) {
+  return <MiniRepl tune={tune} hideOutsideView={true} />;
+}
+```
+
+## Development
+
+If you change something in here and want to see the changes in the repl, make sure to run `npm run build` inside this folder!
+
+```js
+npm run dev # dev server
+npm run build # build package
+```
@@ -1,626 +1,320 @@
-import React, { useState, useEffect, useCallback, useMemo, useRef } from 'react';
-import { CodeMirror as CodeMirror$1 } from 'react-codemirror6';
-import { EditorView, Decoration } from '@codemirror/view';
-import { StateEffect, StateField } from '@codemirror/state';
-import { javascript } from '@codemirror/lang-javascript';
-import { HighlightStyle, tags } from '@codemirror/highlight';
-import { useInView } from 'react-hook-inview';
-import { evaluate } from '@strudel.cycles/eval';
-import { getPlayableNoteValue } from '@strudel.cycles/core/util.mjs';
-import { Tone } from '@strudel.cycles/tone';
-import { TimeSpan, State } from '@strudel.cycles/core';
-import { WebMidi, enableWebMidi } from '@strudel.cycles/midi';
-
-/*
-  Credits for color palette:
-
-  Author:     Mattia Astorino (http://github.com/equinusocio)
-  Website:    https://material-theme.site/
-*/
-
-const ivory = '#abb2bf',
-  stone = '#7d8799', // Brightened compared to original to increase contrast
-  invalid = '#ffffff',
-  darkBackground = '#21252b',
-  highlightBackground = 'rgba(0, 0, 0, 0.5)',
-  // background = '#292d3e',
-  background = 'transparent',
-  tooltipBackground = '#353a42',
-  selection = 'rgba(128, 203, 196, 0.5)',
-  cursor = '#ffcc00';
-
-/// The editor theme styles for Material Palenight.
-const materialPalenightTheme = EditorView.theme(
-  {
-    // done
-    '&': {
-      color: '#ffffff',
-      backgroundColor: background,
-      fontSize: '15px',
-      'z-index': 11,
-    },
-
-    // done
-    '.cm-content': {
-      caretColor: cursor,
-      lineHeight: '22px',
-    },
-    '.cm-line': {
-      background: '#2C323699',
-    },
-    // done
-    '&.cm-focused .cm-cursor': {
-      backgroundColor: cursor,
-      width: '3px',
-    },
-
-    '&.cm-focused .cm-selectionBackground, .cm-selectionBackground, .cm-content ::selection': {
-      backgroundColor: selection,
-    },
-
-    '.cm-panels': { backgroundColor: darkBackground, color: '#ffffff' },
-    '.cm-panels.cm-panels-top': { borderBottom: '2px solid black' },
-    '.cm-panels.cm-panels-bottom': { borderTop: '2px solid black' },
-
-    // done, use onedarktheme
-    '.cm-searchMatch': {
-      backgroundColor: '#72a1ff59',
-      outline: '1px solid #457dff',
-    },
-    '.cm-searchMatch.cm-searchMatch-selected': {
-      backgroundColor: '#6199ff2f',
-    },
-
-    '.cm-activeLine': { backgroundColor: highlightBackground },
-    '.cm-selectionMatch': { backgroundColor: '#aafe661a' },
-
-    '&.cm-focused .cm-matchingBracket, &.cm-focused .cm-nonmatchingBracket': {
-      backgroundColor: '#bad0f847',
-      outline: '1px solid #515a6b',
-    },
-
-    // done
-    '.cm-gutters': {
-      background: 'transparent',
-      color: '#676e95',
-      border: 'none',
-    },
-
-    '.cm-activeLineGutter': {
-      backgroundColor: highlightBackground,
-    },
-
-    '.cm-foldPlaceholder': {
-      backgroundColor: 'transparent',
-      border: 'none',
-      color: '#ddd',
-    },
-
-    '.cm-tooltip': {
-      border: 'none',
-      backgroundColor: tooltipBackground,
-    },
-    '.cm-tooltip .cm-tooltip-arrow:before': {
-      borderTopColor: 'transparent',
-      borderBottomColor: 'transparent',
-    },
-    '.cm-tooltip .cm-tooltip-arrow:after': {
-      borderTopColor: tooltipBackground,
-      borderBottomColor: tooltipBackground,
-    },
-    '.cm-tooltip-autocomplete': {
-      '& > ul > li[aria-selected]': {
-        backgroundColor: highlightBackground,
-        color: ivory,
-      },
-    },
+import n, { useCallback as _, useRef as H, useEffect as L, useMemo as V, useState as w, useLayoutEffect as j } from "react";
+import X from "@uiw/react-codemirror";
+import { Decoration as E, EditorView as U } from "@codemirror/view";
+import { StateEffect as $, StateField as G } from "@codemirror/state";
+import { javascript as Y } from "@codemirror/lang-javascript";
+import { tags as r } from "@lezer/highlight";
+import { createTheme as Z } from "@uiw/codemirror-themes";
+import { useInView as ee } from "react-hook-inview";
+import { webaudioOutput as te, getAudioContext as re } from "@strudel.cycles/webaudio";
+import { repl as oe } from "@strudel.cycles/core";
+import { transpiler as ne } from "@strudel.cycles/transpiler";
+const ae = Z({
+  theme: "dark",
+  settings: {
+    background: "#222",
+    foreground: "#75baff",
+    caret: "#ffcc00",
+    selection: "rgba(128, 203, 196, 0.5)",
+    selectionMatch: "#036dd626",
+    lineHighlight: "#00000050",
+    gutterBackground: "transparent",
+    gutterForeground: "#8a919966"
  },
-  { dark: true },
-);
-
-/// The highlighting style for code in the Material Palenight theme.
-const materialPalenightHighlightStyle = HighlightStyle.define([
-  { tag: tags.keyword, color: '#c792ea' },
-  { tag: tags.operator, color: '#89ddff' },
-  { tag: tags.special(tags.variableName), color: '#eeffff' },
-  { tag: tags.typeName, color: '#f07178' },
-  { tag: tags.atom, color: '#f78c6c' },
-  { tag: tags.number, color: '#ff5370' },
-  { tag: tags.definition(tags.variableName), color: '#82aaff' },
-  { tag: tags.string, color: '#c3e88d' },
-  { tag: tags.special(tags.string), color: '#f07178' },
-  { tag: tags.comment, color: stone },
-  { tag: tags.variableName, color: '#f07178' },
-  { tag: tags.tagName, color: '#ff5370' },
-  { tag: tags.bracket, color: '#a2a1a4' },
-  { tag: tags.meta, color: '#ffcb6b' },
-  { tag: tags.attributeName, color: '#c792ea' },
-  { tag: tags.propertyName, color: '#c792ea' },
-  { tag: tags.className, color: '#decb6b' },
-  { tag: tags.invalid, color: invalid },
-]);
-
-/// Extension to enable the Material Palenight theme (both the editor theme and
-/// the highlight style).
-// : Extension
-const materialPalenight = [materialPalenightTheme, materialPalenightHighlightStyle];
-
-const setHighlights = StateEffect.define();
-const highlightField = StateField.define({
+  styles: [
+    { tag: r.keyword, color: "#c792ea" },
+    { tag: r.operator, color: "#89ddff" },
+    { tag: r.special(r.variableName), color: "#eeffff" },
+    { tag: r.typeName, color: "#c3e88d" },
+    { tag: r.atom, color: "#f78c6c" },
+    { tag: r.number, color: "#c3e88d" },
+    { tag: r.definition(r.variableName), color: "#82aaff" },
+    { tag: r.string, color: "#c3e88d" },
+    { tag: r.special(r.string), color: "#c3e88d" },
+    { tag: r.comment, color: "#7d8799" },
+    { tag: r.variableName, color: "#c792ea" },
+    { tag: r.tagName, color: "#c3e88d" },
+    { tag: r.bracket, color: "#525154" },
+    { tag: r.meta, color: "#ffcb6b" },
+    { tag: r.attributeName, color: "#c792ea" },
+    { tag: r.propertyName, color: "#c792ea" },
+    { tag: r.className, color: "#decb6b" },
+    { tag: r.invalid, color: "#ffffff" }
+  ]
+});
+const B = $.define(), se = G.define({
  create() {
-    return Decoration.none;
+    return E.none;
  },
-  update(highlights, tr) {
+  update(e, t) {
    try {
-      for (let e of tr.effects) {
-        if (e.is(setHighlights)) {
-          highlights = Decoration.set(e.value.flatMap((hap) => (hap.context.locations || []).map(({ start, end }) => {
-            const color = hap.context.color || "#FFCA28";
-            let from = tr.newDoc.line(start.line).from + start.column;
-            let to = tr.newDoc.line(end.line).from + end.column;
-            const l = tr.newDoc.length;
-            if (from > l || to > l) {
-              return;
-            }
-            const mark = Decoration.mark({ attributes: { style: `outline: 1px solid ${color}` } });
-            return mark.range(from, to);
-          })).filter(Boolean), true);
-        }
-      }
-      return highlights;
-    } catch (err) {
-      return highlights;
+      for (let o of t.effects)
+        if (o.is(B))
+          if (o.value) {
+            const a = E.mark({ attributes: { style: "background-color: #FFCA2880" } });
+            e = E.set([a.range(0, t.newDoc.length)]);
+          } else
+            e = E.set([]);
+      return e;
+    } catch (o) {
+      return console.warn("flash error", o), e;
    }
  },
-  provide: (f) => EditorView.decorations.from(f)
-});
-function CodeMirror({ value, onChange, onViewChanged, onCursor, options, editorDidMount }) {
-  return /* @__PURE__ */ React.createElement(React.Fragment, null, /* @__PURE__ */ React.createElement(CodeMirror$1, {
-    onViewChange: onViewChanged,
-    style: {
-      display: "flex",
-      flexDirection: "column",
-      flex: "1 0 auto"
+  provide: (e) => U.decorations.from(e)
+}), ce = (e) => {
+  e.dispatch({ effects: B.of(!0) }), setTimeout(() => {
+    e.dispatch({ effects: B.of(!1) });
+  }, 200);
+}, z = $.define(), ie = G.define({
+  create() {
+    return E.none;
+  },
+  update(e, t) {
+    try {
+      for (let o of t.effects)
+        if (o.is(z)) {
+          const a = o.value.map(
+            (s) => (s.context.locations || []).map(({ start: f, end: d }) => {
+              const u = s.context.color || "#FFCA28";
+              let c = t.newDoc.line(f.line).from + f.column, i = t.newDoc.line(d.line).from + d.column;
+              const m = t.newDoc.length;
+              return c > m || i > m ? void 0 : E.mark({ attributes: { style: `outline: 1.5px solid ${u};` } }).range(c, i);
+            })
+          ).flat().filter(Boolean) || [];
+          e = E.set(a, !0);
+        }
+      return e;
+    } catch {
+      return E.set([]);
+    }
+  },
+  provide: (e) => U.decorations.from(e)
+}), le = [Y(), ae, ie, se];
+function de({ value: e, onChange: t, onViewChanged: o, onSelectionChange: a, options: s, editorDidMount: f }) {
+  const d = _(
+    (i) => {
+      t?.(i);
    },
-    value,
-    onChange,
-    extensions: [
-      javascript(),
-      materialPalenight,
-      highlightField
-    ]
+    [t]
+  ), u = _(
+    (i) => {
+      o?.(i);
+    },
+    [o]
+  ), c = _(
+    (i) => {
+      i.selectionSet && a && a?.(i.state.selection);
+    },
+    [a]
+  );
+  return /* @__PURE__ */ n.createElement(n.Fragment, null, /* @__PURE__ */ n.createElement(X, {
+    value: e,
+    onChange: d,
+    onCreateEditor: u,
+    onUpdate: c,
+    extensions: le
  }));
 }
-
-/*
-useCycle.mjs - <short description TODO>
-Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/useCycle.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/>.
-*/
-
-/* export declare interface UseCycleProps {
-  onEvent: ToneEventCallback<any>;
-  onQuery?: (state: State) => Hap[];
-  onSchedule?: (events: Hap[], cycle: number) => void;
-  onDraw?: ToneEventCallback<any>;
-  ready?: boolean; // if false, query will not be called on change props
-} */
-
-// function useCycle(props: UseCycleProps) {
-function useCycle(props) {
-  // onX must use useCallback!
-  const { onEvent, onQuery, onSchedule, ready = true, onDraw } = props;
-  const [started, setStarted] = useState(false);
-  const cycleDuration = 1;
-  const activeCycle = () => Math.floor(Tone.getTransport().seconds / cycleDuration);
-
-  // pull events with onQuery + count up to next cycle
-  const query = (cycle = activeCycle()) => {
-    const timespan = new TimeSpan(cycle, cycle + 1);
-    const events = onQuery?.(new State(timespan)) || [];
-    onSchedule?.(events, cycle);
-    // cancel events after current query. makes sure no old events are player for rescheduled cycles
-    // console.log('schedule', cycle);
-    // query next cycle in the middle of the current
-    const cancelFrom = timespan.begin.valueOf();
-    Tone.getTransport().cancel(cancelFrom);
-    // const queryNextTime = (cycle + 1) * cycleDuration - 0.1;
-    const queryNextTime = (cycle + 1) * cycleDuration - 0.5;
-
-    // if queryNextTime would be before current time, execute directly (+0.1 for safety that it won't miss)
-    const t = Math.max(Tone.getTransport().seconds, queryNextTime) + 0.1;
-    Tone.getTransport().schedule(() => {
-      query(cycle + 1);
-    }, t);
-
-    // schedule events for next cycle
-    events
-      ?.filter((event) => event.part.begin.equals(event.whole?.begin))
-      .forEach((event) => {
-        Tone.getTransport().schedule((time) => {
-          onEvent(time, event, Tone.getContext().currentTime);
-          Tone.Draw.schedule(() => {
-            // do drawing or DOM manipulation here
-            onDraw?.(time, event);
-          }, time);
-        }, event.part.begin.valueOf());
-      });
-  };
-
-  useEffect(() => {
-    ready && query();
-  }, [onEvent, onSchedule, onQuery, onDraw, ready]);
-
-  const start = async () => {
-    setStarted(true);
-    await Tone.start();
-    Tone.getTransport().start('+0.1');
-  };
-  const stop = () => {
-    Tone.getTransport().pause();
-    setStarted(false);
-  };
-  const toggle = () => (started ? stop() : start());
-  return {
-    start,
-    stop,
-    onEvent,
-    started,
-    setStarted,
-    toggle,
-    query,
-    activeCycle,
-  };
+function K(...e) {
+  return e.filter(Boolean).join(" ");
 }
-
-/*
-usePostMessage.mjs - <short description TODO>
-Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/usePostMessage.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/>.
-*/
-
-function usePostMessage(listener) {
-  useEffect(() => {
-    window.addEventListener('message', listener);
-    return () => window.removeEventListener('message', listener);
-  }, [listener]);
-  return useCallback((data) => window.postMessage(data, '*'), []);
-}
-
-/*
-useRepl.mjs - <short description TODO>
-Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/useRepl.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/>.
-*/
-
-let s4 = () => {
-  return Math.floor((1 + Math.random()) * 0x10000)
-    .toString(16)
-    .substring(1);
-};
-const generateHash = (code) => encodeURIComponent(btoa(code));
-
-function useRepl({ tune, defaultSynth, autolink = true, onEvent, onDraw: onDrawProp }) {
-  const id = useMemo(() => s4(), []);
-  const [code, setCode] = useState(tune);
-  const [activeCode, setActiveCode] = useState();
-  const [log, setLog] = useState('');
-  const [error, setError] = useState();
-  const [pending, setPending] = useState(false);
-  const [hash, setHash] = useState('');
-  const [pattern, setPattern] = useState();
-  const dirty = useMemo(() => code !== activeCode || error, [code, activeCode, error]);
-  const pushLog = useCallback((message) => setLog((log) => log + `${log ? '\n\n' : ''}${message}`), []);
-
-  // below block allows disabling the highlighting by including "strudel disable-highlighting" in the code (as comment)
-  const onDraw = useMemo(() => {
-    if (activeCode && !activeCode.includes('strudel disable-highlighting')) {
-      return (time, event) => onDrawProp?.(time, event, activeCode);
-    }
-  }, [activeCode, onDrawProp]);
-
-  // cycle hook to control scheduling
-  const cycle = useCycle({
-    onDraw,
-    onEvent: useCallback(
-      (time, event, currentTime) => {
-        try {
-          onEvent?.(event);
-          if (event.context.logs?.length) {
-            event.context.logs.forEach(pushLog);
-          }
-          const { onTrigger, velocity } = event.context;
-          if (!onTrigger) {
-            if (defaultSynth) {
-              const note = getPlayableNoteValue(event);
-              defaultSynth.triggerAttackRelease(note, event.duration.valueOf(), time, velocity);
-            } else {
-              throw new Error('no defaultSynth passed to useRepl.');
-            }
-            /* console.warn('no instrument chosen', event);
-          throw new Error(`no instrument chosen for ${JSON.stringify(event)}`); */
-          } else {
-            onTrigger(
-              time,
-              event,
-              currentTime,
-              1 /* cps */,
-              event.wholeOrPart().begin.valueOf(),
-              event.duration.valueOf(),
-            );
-          }
-        } catch (err) {
-          console.warn(err);
-          err.message = 'unplayable event: ' + err?.message;
-          pushLog(err.message); // not with setError, because then we would have to setError(undefined) on next playable event
-        }
-      },
-      [onEvent, pushLog, defaultSynth],
-    ),
-    onQuery: useCallback(
-      (state) => {
-        try {
-          return pattern?.query(state) || [];
-        } catch (err) {
-          console.warn(err);
-          err.message = 'query error: ' + err.message;
-          setError(err);
-          return [];
-        }
-      },
-      [pattern],
-    ),
-    onSchedule: useCallback((_events, cycle) => logCycle(_events, cycle), []),
-    ready: !!pattern && !!activeCode,
-  });
-
-  const broadcast = usePostMessage(({ data: { from, type } }) => {
-    if (type === 'start' && from !== id) {
-      // console.log('message', from, type);
-      cycle.setStarted(false);
-      setActiveCode(undefined);
-    }
-  });
-
-  const activateCode = useCallback(
-    async (_code = code) => {
-      if (activeCode && !dirty) {
-        setError(undefined);
-        cycle.start();
-        return;
-      }
-      try {
-        setPending(true);
-        const parsed = await evaluate(_code);
-        cycle.start();
-        broadcast({ type: 'start', from: id });
-        setPattern(() => parsed.pattern);
-        if (autolink) {
-          window.location.hash = '#' + encodeURIComponent(btoa(code));
-        }
-        setHash(generateHash(code));
-        setError(undefined);
-        setActiveCode(_code);
-        setPending(false);
-      } catch (err) {
-        err.message = 'evaluation error: ' + err.message;
-        console.warn(err);
-        setError(err);
-      }
-    },
-    [activeCode, dirty, code, cycle, autolink, id, broadcast],
-  );
-  // logs events of cycle
-  const logCycle = (_events, cycle) => {
-    if (_events.length) ;
-  };
-
-  const togglePlay = () => {
-    if (!cycle.started) {
-      activateCode();
-    } else {
-      cycle.stop();
-    }
-  };
-
-  return {
-    pending,
-    code,
-    setCode,
-    pattern,
-    error,
-    cycle,
-    setPattern,
-    dirty,
-    log,
-    togglePlay,
-    setActiveCode,
-    activateCode,
-    activeCode,
-    pushLog,
-    hash,
-  };
-}
-
-/*
-cx.js - <short description TODO>
-Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/cx.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/>.
-*/
-
-function cx(...classes) {
-  // : Array<string | undefined>
-  return classes.filter(Boolean).join(' ');
-}
-
-let highlights = []; // actively highlighted events
-let lastEnd;
-
-function useHighlighting({ view, pattern, active }) {
-  useEffect(() => {
-    if (view) {
-      if (pattern && active) {
-        let frame = requestAnimationFrame(updateHighlights);
-
-        function updateHighlights() {
+function ue({ view: e, pattern: t, active: o, getTime: a }) {
+  const s = H([]), f = H();
+  L(() => {
+    if (e)
+      if (t && o) {
+        let u = function() {
          try {
-            const audioTime = Tone.getTransport().seconds;
-            // force min framerate of 10 fps => fixes crash on tab refocus, where lastEnd could be far away
-            // see https://github.com/tidalcycles/strudel/issues/108
-            const begin = Math.max(lastEnd || audioTime, audioTime - 1 / 10);
-            const span = [begin, audioTime + 1 / 60];
-            lastEnd = audioTime + 1 / 60;
-            highlights = highlights.filter((hap) => hap.whole.end > audioTime); // keep only highlights that are still active
-            const haps = pattern.queryArc(...span).filter((hap) => hap.hasOnset());
-            highlights = highlights.concat(haps); // add potential new onsets
-            view.dispatch({ effects: setHighlights.of(highlights) }); // highlight all still active + new active haps
-          } catch (err) {
-            // console.log('error in updateHighlights', err);
-            view.dispatch({ effects: setHighlights.of([]) });
+            const c = a(), m = [Math.max(f.current || c, c - 1 / 10, 0), c + 1 / 60];
+            f.current = m[1], s.current = s.current.filter((g) => g.whole.end > c);
+            const h = t.queryArc(...m).filter((g) => g.hasOnset());
+            s.current = s.current.concat(h), e.dispatch({ effects: z.of(s.current) });
+          } catch {
+            e.dispatch({ effects: z.of([]) });
          }
-          frame = requestAnimationFrame(updateHighlights);
-        }
-
+          d = requestAnimationFrame(u);
+        }, d = requestAnimationFrame(u);
        return () => {
-          cancelAnimationFrame(frame);
+          cancelAnimationFrame(d);
        };
-      } else {
-        highlights = [];
-        view.dispatch({ effects: setHighlights.of([]) });
-      }
-    }
-  }, [pattern, active, view]);
+      } else
+        s.current = [], e.dispatch({ effects: z.of([]) });
+  }, [t, o, e]);
 }
-
-var tailwind = '';
-
-var style = '';
-
-const container = "_container_10e1g_1";
-const header = "_header_10e1g_5";
-const buttons = "_buttons_10e1g_9";
-const button = "_button_10e1g_9";
-const buttonDisabled = "_buttonDisabled_10e1g_17";
-const error = "_error_10e1g_21";
-const body = "_body_10e1g_25";
-var styles = {
-	container: container,
-	header: header,
-	buttons: buttons,
-	button: button,
-	buttonDisabled: buttonDisabled,
-	error: error,
-	body: body
+const fe = "_container_3i85k_1", me = "_header_3i85k_5", ge = "_buttons_3i85k_9", pe = "_button_3i85k_9", he = "_buttonDisabled_3i85k_17", be = "_error_3i85k_21", ve = "_body_3i85k_25", v = {
+  container: fe,
+  header: me,
+  buttons: ge,
+  button: pe,
+  buttonDisabled: he,
+  error: be,
+  body: ve
 };
-
-function Icon({ type }) {
-  return /* @__PURE__ */ React.createElement("svg", {
+function O({ type: e }) {
+  return /* @__PURE__ */ n.createElement("svg", {
    xmlns: "http://www.w3.org/2000/svg",
    className: "sc-h-5 sc-w-5",
    viewBox: "0 0 20 20",
    fill: "currentColor"
  }, {
-    refresh: /* @__PURE__ */ React.createElement("path", {
+    refresh: /* @__PURE__ */ n.createElement("path", {
      fillRule: "evenodd",
      d: "M4 2a1 1 0 011 1v2.101a7.002 7.002 0 0111.601 2.566 1 1 0 11-1.885.666A5.002 5.002 0 005.999 7H9a1 1 0 010 2H4a1 1 0 01-1-1V3a1 1 0 011-1zm.008 9.057a1 1 0 011.276.61A5.002 5.002 0 0014.001 13H11a1 1 0 110-2h5a1 1 0 011 1v5a1 1 0 11-2 0v-2.101a7.002 7.002 0 01-11.601-2.566 1 1 0 01.61-1.276z",
      clipRule: "evenodd"
    }),
-    play: /* @__PURE__ */ React.createElement("path", {
+    play: /* @__PURE__ */ n.createElement("path", {
      fillRule: "evenodd",
      d: "M10 18a8 8 0 100-16 8 8 0 000 16zM9.555 7.168A1 1 0 008 8v4a1 1 0 001.555.832l3-2a1 1 0 000-1.664l-3-2z",
      clipRule: "evenodd"
    }),
-    pause: /* @__PURE__ */ React.createElement("path", {
+    pause: /* @__PURE__ */ n.createElement("path", {
      fillRule: "evenodd",
      d: "M18 10a8 8 0 11-16 0 8 8 0 0116 0zM7 8a1 1 0 012 0v4a1 1 0 11-2 0V8zm5-1a1 1 0 00-1 1v4a1 1 0 102 0V8a1 1 0 00-1-1z",
      clipRule: "evenodd"
    })
-  }[type]);
+  }[e]);
 }
-
-function MiniRepl({ tune, defaultSynth, hideOutsideView = false }) {
-  const { code, setCode, pattern, activateCode, error, cycle, dirty, togglePlay } = useRepl({
-    tune,
-    defaultSynth,
-    autolink: false
-  });
-  const [view, setView] = useState();
-  const [ref, isVisible] = useInView({
-    threshold: 0.01
-  });
-  const wasVisible = useRef();
-  const show = useMemo(() => {
-    if (isVisible || !hideOutsideView) {
-      wasVisible.current = true;
+function Ee(e) {
+  return L(() => (window.addEventListener("message", e), () => window.removeEventListener("message", e)), [e]), _((t) => window.postMessage(t, "*"), []);
+}
+function we({
+  defaultOutput: e,
+  interval: t,
+  getTime: o,
+  evalOnMount: a = !1,
+  initialCode: s = "",
+  autolink: f = !1,
+  beforeEval: d,
+  afterEval: u,
+  onEvalError: c,
+  onToggle: i
+}) {
+  const m = V(() => ye(), []), [h, g] = w(), [C, N] = w(), [p, y] = w(s), [M, S] = w(), [k, D] = w(), [F, x] = w(!1), b = p !== M, { scheduler: A, evaluate: T, start: J, stop: q, pause: Q } = V(
+    () => oe({
+      interval: t,
+      defaultOutput: e,
+      onSchedulerError: g,
+      onEvalError: (l) => {
+        N(l), c?.(l);
+      },
+      getTime: o,
+      transpiler: ne,
+      beforeEval: ({ code: l }) => {
+        y(l), d?.();
+      },
+      afterEval: ({ pattern: l, code: P }) => {
+        S(P), D(l), N(), g(), f && (window.location.hash = "#" + encodeURIComponent(btoa(P))), u?.();
+      },
+      onToggle: (l) => {
+        x(l), i?.(l);
+      }
+    }),
+    [e, t, o]
+  ), W = Ee(({ data: { from: l, type: P } }) => {
+    P === "start" && l !== m && q();
+  }), R = _(
+    async (l = !0) => {
+      await T(p, l), W({ type: "start", from: m });
+    },
+    [T, p]
+  ), I = H();
+  return L(() => {
+    !I.current && a && p && (I.current = !0, R());
+  }, [R, a, p]), L(() => () => {
+    A.stop();
+  }, [A]), {
+    code: p,
+    setCode: y,
+    error: h || C,
+    schedulerError: h,
+    scheduler: A,
+    evalError: C,
+    evaluate: T,
+    activateCode: R,
+    activeCode: M,
+    isDirty: b,
+    pattern: k,
+    started: F,
+    start: J,
+    stop: q,
+    pause: Q,
+    togglePlay: async () => {
+      F ? A.pause() : await R();
    }
-    return isVisible || wasVisible.current;
-  }, [isVisible, hideOutsideView]);
-  useHighlighting({ view, pattern, active: cycle.started });
-  return /* @__PURE__ */ React.createElement("div", {
-    className: styles.container,
-    ref
-  }, /* @__PURE__ */ React.createElement("div", {
-    className: styles.header
-  }, /* @__PURE__ */ React.createElement("div", {
-    className: styles.buttons
-  }, /* @__PURE__ */ React.createElement("button", {
-    className: cx(styles.button, cycle.started ? "sc-animate-pulse" : ""),
-    onClick: () => togglePlay()
-  }, /* @__PURE__ */ React.createElement(Icon, {
-    type: cycle.started ? "pause" : "play"
-  })), /* @__PURE__ */ React.createElement("button", {
-    className: cx(dirty ? styles.button : styles.buttonDisabled),
-    onClick: () => activateCode()
-  }, /* @__PURE__ */ React.createElement(Icon, {
+  };
+}
+function ye() {
+  return Math.floor((1 + Math.random()) * 65536).toString(16).substring(1);
+}
+const ke = () => re().currentTime;
+function Se({ tune: e, hideOutsideView: t = !1, init: o, enableKeyboard: a }) {
+  const {
+    code: s,
+    setCode: f,
+    evaluate: d,
+    activateCode: u,
+    error: c,
+    isDirty: i,
+    activeCode: m,
+    pattern: h,
+    started: g,
+    scheduler: C,
+    togglePlay: N,
+    stop: p
+  } = we({
+    initialCode: e,
+    defaultOutput: te,
+    getTime: ke
+  }), [y, M] = w(), [S, k] = ee({
+    threshold: 0.01
+  }), D = H(), F = V(() => ((k || !t) && (D.current = !0), k || D.current), [k, t]);
+  return ue({
+    view: y,
+    pattern: h,
+    active: g && !m?.includes("strudel disable-highlighting"),
+    getTime: () => C.getPhase()
+  }), j(() => {
+    if (a) {
+      const x = async (b) => {
+        (b.ctrlKey || b.altKey) && (b.code === "Enter" ? (b.preventDefault(), ce(y), await u()) : b.code === "Period" && (p(), b.preventDefault()));
+      };
+      return window.addEventListener("keydown", x, !0), () => window.removeEventListener("keydown", x, !0);
+    }
+  }, [a, h, s, d, p, y]), /* @__PURE__ */ n.createElement("div", {
+    className: v.container,
+    ref: S
+  }, /* @__PURE__ */ n.createElement("div", {
+    className: v.header
+  }, /* @__PURE__ */ n.createElement("div", {
+    className: v.buttons
+  }, /* @__PURE__ */ n.createElement("button", {
+    className: K(v.button, g ? "sc-animate-pulse" : ""),
+    onClick: () => N()
+  }, /* @__PURE__ */ n.createElement(O, {
+    type: g ? "pause" : "play"
+  })), /* @__PURE__ */ n.createElement("button", {
+    className: K(i ? v.button : v.buttonDisabled),
+    onClick: () => u()
+  }, /* @__PURE__ */ n.createElement(O, {
    type: "refresh"
-  }))), error && /* @__PURE__ */ React.createElement("div", {
-    className: styles.error
-  }, error.message)), /* @__PURE__ */ React.createElement("div", {
-    className: styles.body
-  }, show && /* @__PURE__ */ React.createElement(CodeMirror, {
-    value: code,
-    onChange: setCode,
-    onViewChanged: setView
+  }))), c && /* @__PURE__ */ n.createElement("div", {
+    className: v.error
+  }, c.message)), /* @__PURE__ */ n.createElement("div", {
+    className: v.body
+  }, F && /* @__PURE__ */ n.createElement(de, {
+    value: s,
+    onChange: f,
+    onViewChanged: M
  })));
 }
-
-/*
-useWebMidi.js - <short description TODO>
-Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/useWebMidi.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/>.
-*/
-
-function useWebMidi(props) {
-  const { ready, connected, disconnected } = props;
-  const [loading, setLoading] = useState(true);
-  const [outputs, setOutputs] = useState(WebMidi?.outputs || []);
-  useEffect(() => {
-    enableWebMidi()
-      .then(() => {
-        // Reacting when a new device becomes available
-        WebMidi.addListener('connected', (e) => {
-          setOutputs([...WebMidi.outputs]);
-          connected?.(WebMidi, e);
-        });
-        // Reacting when a device becomes unavailable
-        WebMidi.addListener('disconnected', (e) => {
-          setOutputs([...WebMidi.outputs]);
-          disconnected?.(WebMidi, e);
-        });
-        ready?.(WebMidi);
-        setLoading(false);
-      })
-      .catch((err) => {
-        if (err) {
-          console.error(err);
-          //throw new Error("Web Midi could not be enabled...");
-          console.warn('Web Midi could not be enabled..');
-          return;
-        }
-      });
-  }, [ready, connected, disconnected, outputs]);
-  const outputByName = (name) => WebMidi.getOutputByName(name);
-  return { loading, outputs, outputByName };
-}
-
-export { CodeMirror, MiniRepl, cx, useCycle, useHighlighting, usePostMessage, useRepl, useWebMidi };
+const Te = (e) => j(() => (window.addEventListener("keydown", e, !0), () => window.removeEventListener("keydown", e, !0)), [e]);
+export {
+  de as CodeMirror,
+  Se as MiniRepl,
+  K as cx,
+  ce as flash,
+  ue as useHighlighting,
+  Te as useKeydown,
+  Ee as usePostMessage,
+  we as useStrudel
+};
@@ -1 +1 @@
-*,:before,:after{--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: }.sc-h-5{height:1.25rem}.sc-w-5{width:1.25rem}@keyframes sc-pulse{50%{opacity:.5}}.sc-animate-pulse{animation:sc-pulse 2s cubic-bezier(.4,0,.6,1) infinite}.cm-editor{background-color:transparent!important}._container_10e1g_1{overflow:hidden;border-radius:.375rem;--tw-bg-opacity: 1;background-color:rgb(68 76 87 / var(--tw-bg-opacity))}._header_10e1g_5{display:flex;justify-content:space-between;border-top-width:1px;--tw-border-opacity: 1;border-color:rgb(100 116 139 / var(--tw-border-opacity));--tw-bg-opacity: 1;background-color:rgb(51 65 85 / var(--tw-bg-opacity))}._buttons_10e1g_9{display:flex}._button_10e1g_9{display:flex;width:4rem;cursor:pointer;align-items:center;justify-content:center;border-right-width:1px;--tw-border-opacity: 1;border-color:rgb(100 116 139 / var(--tw-border-opacity));--tw-bg-opacity: 1;background-color:rgb(51 65 85 / var(--tw-bg-opacity));padding:.25rem;--tw-text-opacity: 1;color:rgb(255 255 255 / var(--tw-text-opacity))}._button_10e1g_9:hover{--tw-bg-opacity: 1;background-color:rgb(71 85 105 / var(--tw-bg-opacity))}._buttonDisabled_10e1g_17{display:flex;width:4rem;cursor:pointer;cursor:not-allowed;align-items:center;justify-content:center;--tw-bg-opacity: 1;background-color:rgb(71 85 105 / var(--tw-bg-opacity));padding:.25rem;--tw-text-opacity: 1;color:rgb(148 163 184 / var(--tw-text-opacity))}._error_10e1g_21{padding:.25rem;text-align:right;font-size:.875rem;line-height:1.25rem;--tw-text-opacity: 1;color:rgb(254 202 202 / var(--tw-text-opacity))}._body_10e1g_25{position:relative;overflow:auto}
+.cm-editor{background-color:transparent!important;height:100%;z-index:11;font-size:18px}.cm-theme-light{width:100%}.cm-line>*{background:#00000095}*,:before,:after{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: }::backdrop{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: }.sc-h-5{height:1.25rem}.sc-w-5{width:1.25rem}@keyframes sc-pulse{50%{opacity:.5}}.sc-animate-pulse{animation:sc-pulse 2s cubic-bezier(.4,0,.6,1) infinite}._container_3i85k_1{overflow:hidden;border-radius:.375rem;--tw-bg-opacity: 1;background-color:rgb(34 34 34 / var(--tw-bg-opacity))}._header_3i85k_5{display:flex;justify-content:space-between;border-top-width:1px;--tw-border-opacity: 1;border-color:rgb(100 116 139 / var(--tw-border-opacity));--tw-bg-opacity: 1;background-color:rgb(51 65 85 / var(--tw-bg-opacity))}._buttons_3i85k_9{display:flex}._button_3i85k_9{display:flex;width:4rem;cursor:pointer;align-items:center;justify-content:center;border-right-width:1px;--tw-border-opacity: 1;border-color:rgb(100 116 139 / var(--tw-border-opacity));--tw-bg-opacity: 1;background-color:rgb(51 65 85 / var(--tw-bg-opacity));padding:.25rem;--tw-text-opacity: 1;color:rgb(255 255 255 / var(--tw-text-opacity))}._button_3i85k_9:hover{--tw-bg-opacity: 1;background-color:rgb(71 85 105 / var(--tw-bg-opacity))}._buttonDisabled_3i85k_17{display:flex;width:4rem;cursor:pointer;cursor:not-allowed;align-items:center;justify-content:center;--tw-bg-opacity: 1;background-color:rgb(71 85 105 / var(--tw-bg-opacity));padding:.25rem;--tw-text-opacity: 1;color:rgb(148 163 184 / var(--tw-text-opacity))}._error_3i85k_21{padding:.25rem;text-align:right;font-size:.875rem;line-height:1.25rem;--tw-text-opacity: 1;color:rgb(254 202 202 / var(--tw-text-opacity))}._body_3i85k_25{position:relative;overflow:auto}
@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+!dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
@@ -0,0 +1 @@
+.cm-editor{background-color:transparent!important;height:100%;z-index:11;font-size:16px}.cm-theme-light{width:100%}.cm-line>*{background:#00000095}*,:before,:after{box-sizing:border-box;border-width:0;border-style:solid;border-color:#e5e7eb}:before,:after{--tw-content: ""}html{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji"}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,[type=button],[type=reset],[type=submit]{-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{list-style:none;margin:0;padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca3af}input:-ms-input-placeholder,textarea:-ms-input-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]{display:none}*,:before,:after{--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: }.fixed{position:fixed}.absolute{position:absolute}.bottom-0{bottom:0px}.z-\[12\]{z-index:12}.flex{display:flex}.w-full{width:100%}.justify-center{justify-content:center}.space-x-2>:not([hidden])~:not([hidden]){--tw-space-x-reverse: 0;margin-right:calc(.5rem * var(--tw-space-x-reverse));margin-left:calc(.5rem * calc(1 - var(--tw-space-x-reverse)))}.rounded-t-md{border-top-left-radius:.375rem;border-top-right-radius:.375rem}.bg-slate-500{--tw-bg-opacity: 1;background-color:rgb(100 116 139 / var(--tw-bg-opacity))}.px-2{padding-left:.5rem;padding-right:.5rem}body{background:#123}
@@ -0,0 +1 @@
+import{f as s,i as t,h as o,j as d,q as f,l as p,k as u,p as i,o as l,n as r,w as g}from"./index.ec9f9930.js";export{s as getAudioContext,t as getCachedBuffer,o as getDestination,d as getLoadedBuffer,f as getLoadedSamples,p as loadBuffer,u as loadGithubSamples,i as panic,l as resetLoadedSamples,r as samples,g as webaudioOutput};
@@ -0,0 +1 @@
+import{P as w}from"./index.ec9f9930.js";var i,f=!1;async function b(a=38400){if(!f){if(f=!0,i)return i;if("serial"in navigator){const r=await navigator.serial.requestPort();await r.open({baudRate:a});const o=new TextEncoderStream;o.readable.pipeTo(r.writable);const s=o.writable.getWriter();i=function(e){s.write(e)}}else throw"Webserial is not available in this browser."}}const g=.1;w.prototype.serial=function(...a){return this._withHap(r=>{i||b(...a);const o=(s,e,u)=>{var t="";if(typeof e.value=="object")if("action"in e.value){t+=e.value.action+"(";var c=!0;for(const[n,l]of Object.entries(e.value))n!=="action"&&(c?c=!1:t+=",",t+=`${n}:${l}`);t+=")"}else for(const[n,l]of Object.entries(e.value))t+=`${n}:${l};`;else t=e.value;const v=(s-u+g)*1e3;window.setTimeout(i,v,t)};return r.setContext({...r.context,onTrigger:o})})};export{b as getWriter};
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Strudel Nano REPL</title>
+    <script type="module" crossorigin src="./assets/index.ec9f9930.js"></script>
+    <link rel="stylesheet" href="./assets/index.75f8960b.css">
+  </head>
+  <body>
+    <div id="root"></div>
+    
+  </body>
+</html>
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Strudel Nano REPL</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.jsx"></script>
+  </body>
+</html>
@@ -0,0 +1,24 @@
+{
+  "name": "nano-repl",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0"
+  },
+  "devDependencies": {
+    "@types/react": "^18.0.17",
+    "@types/react-dom": "^18.0.6",
+    "@vitejs/plugin-react": "^2.0.1",
+    "autoprefixer": "^10.4.8",
+    "postcss": "^8.4.16",
+    "tailwindcss": "^3.1.8",
+    "vite": "^3.0.7"
+  }
+}
@@ -0,0 +1,139 @@
+import { evalScope, controls } from '@strudel.cycles/core';
+import { getAudioContext, panic, webaudioOutput } from '@strudel.cycles/webaudio';
+import { useCallback, useState } from 'react';
+import CodeMirror, { flash } from '../../../src/components/CodeMirror6';
+import useKeydown from '../../../src/hooks/useKeydown.mjs';
+import useStrudel from '../../../src/hooks/useStrudel';
+import useHighlighting from '../../../src/hooks/useHighlighting';
+import './style.css';
+// import { prebake } from '../../../../../repl/src/prebake.mjs';
+
+// TODO: only import stuff when play is pressed?
+evalScope(
+  controls,
+  import('@strudel.cycles/core'),
+  // import('@strudel.cycles/tone'),
+  // import('@strudel.cycles/midi'), // TODO: find out why midi loads tone.js
+  import('@strudel.cycles/tonal'),
+  import('@strudel.cycles/mini'),
+  import('@strudel.cycles/xen'),
+  import('@strudel.cycles/webaudio'),
+  import('@strudel.cycles/osc'),
+  import('@strudel.cycles/webdirt'),
+  import('@strudel.cycles/serial'),
+  import('@strudel.cycles/soundfonts'),
+);
+
+const defaultTune = `samples({
+  bd: ['bd/BT0AADA.wav','bd/BT0AAD0.wav','bd/BT0A0DA.wav','bd/BT0A0D3.wav','bd/BT0A0D0.wav','bd/BT0A0A7.wav'],
+  sd: ['sd/rytm-01-classic.wav','sd/rytm-00-hard.wav'],
+  hh: ['hh27/000_hh27closedhh.wav','hh/000_hh3closedhh.wav'],
+}, 'github:tidalcycles/Dirt-Samples/master/');
+stack(
+  s("bd,[~ <sd!3 sd(3,4,2)>],hh(3,4)") // drums
+  .speed(perlin.range(.7,.9)) // random sample speed variation
+  //.hush()
+  ,"<a1 b1*2 a1(3,8) e2>" // bassline
+  .off(1/8,x=>x.add(12).degradeBy(.5)) // random octave jumps
+  .add(perlin.range(0,.5)) // random pitch variation
+  .superimpose(add(.05)) // add second, slightly detuned voice
+  .n() // wrap in "n"
+  .decay(.15).sustain(0) // make each note of equal length
+  .s('sawtooth') // waveform
+  .gain(.4) // turn down
+  .cutoff(sine.slow(7).range(300,5000)) // automate cutoff
+  //.hush()
+  ,"<Am7!3 <Em7 E7b13 Em7 Ebm7b5>>".voicings() // chords
+  .superimpose(x=>x.add(.04)) // add second, slightly detuned voice
+  .add(perlin.range(0,.5)) // random pitch variation
+  .n() // wrap in "n"
+  .s('square') // waveform
+  .gain(.16) // turn down
+  .cutoff(500) // fixed cutoff
+  .attack(1) // slowly fade in
+  //.hush()
+  ,"a4 c5 <e6 a6>".struct("x(5,8)")
+  .superimpose(x=>x.add(.04)) // add second, slightly detuned voice
+  .add(perlin.range(0,.5)) // random pitch variation
+  .n() // wrap in "n"
+  .decay(.1).sustain(0) // make notes short
+  .s('triangle') // waveform
+  .degradeBy(perlin.range(0,.5)) // randomly controlled random removal :)
+  .echoWith(4,.125,(x,n)=>x.gain(.15*1/(n+1))) // echo notes
+  //.hush()
+)
+.fast(2/3)`;
+
+// await prebake();
+
+const ctx = getAudioContext();
+const getTime = () => ctx.currentTime;
+function App() {
+  const [code, setCode] = useState(defaultTune);
+  const [view, setView] = useState();
+  // const [code, setCode] = useState(`"c3".note().slow(2)`);
+  const { scheduler, evaluate, schedulerError, evalError, isDirty, activeCode, pattern } = useStrudel({
+    code,
+    defaultOutput: webaudioOutput,
+    getTime,
+  });
+
+  useHighlighting({
+    view,
+    pattern,
+    active: !activeCode?.includes('strudel disable-highlighting'),
+    getTime: () => scheduler.getPhase(),
+  });
+
+  const error = evalError || schedulerError;
+  useKeydown(
+    useCallback(
+      async (e) => {
+        if (e.ctrlKey || e.altKey) {
+          if (e.code === 'Enter') {
+            e.preventDefault();
+            flash(view);
+            await evaluate(code);
+            if (e.shiftKey) {
+              panic();
+              scheduler.stop();
+              scheduler.start();
+            }
+            if (!scheduler.started) {
+              scheduler.start();
+            }
+          } else if (e.code === 'Period') {
+            scheduler.pause();
+            panic();
+            e.preventDefault();
+          }
+        }
+      },
+      [scheduler, evaluate, view],
+    ),
+  );
+  return (
+    <div>
+      {/* <textarea value={code} onChange={(e) => setCode(e.target.value)} cols="64" rows="30" /> */}
+      <nav className="z-[12] w-full flex justify-center absolute bottom-0">
+        <div className="bg-slate-500 space-x-2 px-2 rounded-t-md">
+          <button
+            onClick={async () => {
+              await evaluate(code);
+              await getAudioContext().resume();
+              scheduler.start();
+            }}
+          >
+            start
+          </button>
+          <button onClick={() => scheduler.stop()}>stop</button>
+          {isDirty && <button onClick={() => evaluate(code)}>eval</button>}
+        </div>
+        {error && <p>error {error.message}</p>}
+      </nav>
+      <CodeMirror value={code} onChange={setCode} onViewChanged={setView} />
+    </div>
+  );
+}
+
+export default App;
@@ -0,0 +1,9 @@
+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import App from './App';
+
+ReactDOM.createRoot(document.getElementById('root')).render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+);
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
				`import{b as s,h as i,m,a as n,c as p,p as t}from"./index.4cbc0a10.js";export{s as SyntaxError,i as h,m as mini,n as minify,p as parse,t as patternifyAST};`
				`@@ -0,0 +1 @@`
				`import{g as s,f as d,i as t,n as r,l as u,j as o,d as f,k as p,r as g,s as i,w as l,e as m}from"./index.4cbc0a10.js";export{s as getAudioContext,d as getCachedBuffer,t as getLoadedBuffer,r as getLoadedSamples,u as loadBuffer,o as loadGithubSamples,f as panic,p as resetLoadedSamples,g as reverseBuffer,i as samples,l as webaudioOutput,m as webaudioOutputTrigger};`
				`@@ -0,0 +1 @@`
				.cm-editor{background-color:transparent!important;height:100%;z-index:11;font-size:16px}.cm-theme-light{width:100%}.cm-line>{background:#00000095},:before,:after{box-sizing:border-box;border-width:0;border-style:solid;border-color:#e5e7eb}:before,:after{--tw-content: ""}html{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji"}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,[type=button],[type=reset],[type=submit]{-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{list-style:none;margin:0;padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca3af}input:-ms-input-placeholder,textarea:-ms-input-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]{display:none},:before,:after{--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: }.fixed{position:fixed}.absolute{position:absolute}.bottom-0{bottom:0px}.z-\[12\]{z-index:12}.flex{display:flex}.w-full{width:100%}.justify-center{justify-content:center}.space-x-2>:not([hidden])~:not([hidden]){--tw-space-x-reverse: 0;margin-right:calc(.5rem var(--tw-space-x-reverse));margin-left:calc(.5rem * calc(1 - var(--tw-space-x-reverse)))}.rounded-t-md{border-top-left-radius:.375rem;border-top-right-radius:.375rem}.bg-slate-500{--tw-bg-opacity: 1;background-color:rgb(100 116 139 / var(--tw-bg-opacity))}.px-2{padding-left:.5rem;padding-right:.5rem}body{background:#123}
				`@@ -0,0 +1 @@`
				`import{f as s,i as t,h as o,j as d,q as f,l as p,k as u,p as i,o as l,n as r,w as g}from"./index.ec9f9930.js";export{s as getAudioContext,t as getCachedBuffer,o as getDestination,d as getLoadedBuffer,f as getLoadedSamples,p as loadBuffer,u as loadGithubSamples,i as panic,l as resetLoadedSamples,r as samples,g as webaudioOutput};`
				`@@ -0,0 +1 @@`
				import{P as w}from"./index.ec9f9930.js";var i,f=!1;async function b(a=38400){if(!f){if(f=!0,i)return i;if("serial"in navigator){const r=await navigator.serial.requestPort();await r.open({baudRate:a});const o=new TextEncoderStream;o.readable.pipeTo(r.writable);const s=o.writable.getWriter();i=function(e){s.write(e)}}else throw"Webserial is not available in this browser."}}const g=.1;w.prototype.serial=function(...a){return this._withHap(r=>{i\|\|b(...a);const o=(s,e,u)=>{var t="";if(typeof e.value=="object")if("action"in e.value){t+=e.value.action+"(";var c=!0;for(const[n,l]of Object.entries(e.value))n!=="action"&&(c?c=!1:t+=",",t+=`${n}:${l}`);t+=")"}else for(const[n,l]of Object.entries(e.value))t+=`${n}:${l};`;else t=e.value;const v=(s-u+g)*1e3;window.setTimeout(i,v,t)};return r.setContext({...r.context,onTrigger:o})})};export{b as getWriter};