better defaults

Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1774

packages/core/controls.mjs

@@ -1294,6 +1294,8 @@ export const { fanchor } = registerControl('fanchor');
  *
  * @name lprate
  * @param {number | Pattern} rate rate in hertz
+ * @example
+ * note("<c c c# c c c4>*16").s("sawtooth").lpf(600).lprate("<4 8 2 1>")
  */
 export const { lprate } = registerControl('lprate');
 
@@ -1302,6 +1304,8 @@ export const { lprate } = registerControl('lprate');
  *
  * @name lpsync
  * @param {number | Pattern} rate rate in cycles
+ * @example
+ * note("<c c c# c c c4>*16").s("sawtooth").lpf(600).lpsync("<4 8 2 1>")
  */
 export const { lpsync } = registerControl('lpsync');
 
@@ -1310,8 +1314,23 @@ export const { lpsync } = registerControl('lpsync');
  *
  * @name lpdepth
  * @param {number | Pattern} depth depth of modulation
+ * @example
+ * note("<c c c# c c c4>*16").s("sawtooth").lpf(600).lpdepth("<1 .5 1.8 0>")
  */
+
 export const { lpdepth } = registerControl('lpdepth');
+/**
+ * Depth of the LFO for the lowpass filter, in HZ
+ *
+ * @name lpdepthfrequency
+ * @synonyms
+ * lpdethfreq
+ * @param {number | Pattern} depth depth of modulation
+ * @example
+ * note("<c c c# c c c4>*16").s("sawtooth").lpf(600).lpdepthfrequency("<200 500 100 0>")
+ */
+
+export const { lpdepthfrequency } = registerControl('lpdepthfrequency', 'lpdepthfreq');
 
 /**
  * Shape of the LFO for the lowpass filter
@@ -1361,6 +1380,19 @@ export const { bpsync } = registerControl('bpsync');
  */
 export const { bpdepth } = registerControl('bpdepth');
 
+/**
+ * Depth of the LFO for the bandpass filter, in HZ
+ *
+ * @name bpdepthfrequency
+ * @synonyms
+ * bpdethfreq
+ * @param {number | Pattern} depth depth of modulation
+ * @example
+ * note("<c c c# c c c4>*16").s("sawtooth").lpf(600).bpdepthfrequency("<200 500 100 0>")
+ */
+
+export const { bpdepthfrequency } = registerControl('bpdepthfrequency', 'bpdepthfreq');
+
 /**
  * Shape of the LFO for the bandpass filter
  *
@@ -1407,7 +1439,20 @@ export const { hpsync } = registerControl('hpsync');
  * @name hpdepth
  * @param {number | Pattern} depth depth of modulation
  */
-export const { hpdepth } = registerControl('hpdepth');
+export const { hpdepth, hpdepthfreq } = registerControl('hpdepth');
+
+/**
+ * Depth of the LFO for the hipass filter, in hz
+ *
+ * @name hpdepthfrequency
+ * @synonyms
+ * hpdethfreq
+ * @param {number | Pattern} depth depth of modulation
+ * @example
+ * note("<c c c# c c c4>*16").s("sawtooth").lpf(600).hpdepthfrequency("<200 500 100 0>")
+ */
+
+export const { hpdepthfrequency } = registerControl('hpdepthfrequency', 'hpdepthfreq');
 
 /**
  * Shape of the LFO for the highpass filter
@@ -1820,12 +1865,12 @@ export const { nudge } = registerControl('nudge');
  * Sets the default octave of a synth.
  *
  * @name octave
+ * @synonyms oct
  * @param {number | Pattern} octave octave number
  * @example
- * n("0,4,7").s('supersquare').octave("<3 4 5 6>").osc()
- * @superDirtOnly
+ * n("0,4,7").scale("F:minor").s('supersaw').octave("<0 1 2 3>")
  */
-export const { octave } = registerControl('octave');
+export const { octave, oct } = registerControl('octave', 'oct');
 
 // ['ophatdecay'],
 // TODO: example
@@ -1833,6 +1878,7 @@ export const { octave } = registerControl('octave');
  * An `orbit` is a global parameter context for patterns. Patterns with the same orbit will share the same global effects.
  *
  * @name orbit
+ * @synonyms o
  * @param {number | Pattern} number
  * @example
  * stack(
@@ -1840,7 +1886,7 @@ export const { octave } = registerControl('octave');
  *   s("~ sd ~ sd").delay(.5).delaytime(.125).orbit(2)
  * )
  */
-export const { orbit } = registerControl('orbit');
+export const { orbit } = registerControl('orbit', 'o');
 // TODO: what is this? not found in tidal doc Answer: gain is limited to maximum of 2. This allows you to go over that
 export const { overgain } = registerControl('overgain');
 // TODO: what is this? not found in tidal doc. Similar to above, but limited to 1
@@ -2264,7 +2310,6 @@ export const { tsdelay } = registerControl('tsdelay');
 export const { real } = registerControl('real');
 export const { imag } = registerControl('imag');
 export const { enhance } = registerControl('enhance');
-export const { partials } = registerControl('partials');
 export const { comb } = registerControl('comb');
 export const { smear } = registerControl('smear');
 export const { scram } = registerControl('scram');

packages/core/pattern.mjs

@@ -3624,3 +3624,66 @@ for (const name of distAlgoNames) {
     return this.distort(argsPat);
   };
 }
+
+/**
+ * Turns a list of patterns into a single pattern which outputs list-values
+ *
+ * @name parray
+ * @returns Pattern
+ */
+export const parray = (pats) => {
+  const pack = (...xs) => xs;
+  let acc = pure(curry(pack, null, pats.length));
+  for (const p of pats) acc = acc.appBoth(reify(p));
+  return acc;
+};
+
+const _ensureListPattern = (list) => {
+  if (Array.isArray(list)) {
+    return parray(list);
+  }
+  return reify(list);
+};
+
+/**
+ * Scale the magnitude of the harmonics of one of the core synths ('sine', 'tri', 'saw', ..)
+ *
+ * Can also be used to create a new synth via `s('user').partials(...)`
+ *
+ * @name partials
+ * @param {number[] | Pattern} magnitudes List of [0, 1] magnitudes for partials. 0th entry is the fundamental harmonic (i.e. DC offset is skipped)
+ * @example
+ * s("user").seg(16).n(irand(8)).scale("A:major")
+ *   .partials([1, 0, 1, 0, 0, 1])
+ * @example
+ * s("saw").seg(8).n(irand(12)).scale("G#:minor")
+ *   .partials(binaryL(irand(256).add("1")))
+ */
+Pattern.prototype.partials = function (list) {
+  return this.withValue((v) => (l) => ({ ...v, partials: l })).appLeft(_ensureListPattern(list));
+};
+
+// Also create a top-level function
+export const partials = (list) => {
+  return _ensureListPattern(list).as('partials');
+};
+
+/**
+ * Rotates the harmonics of one of the core synths ('sine', 'tri', 'saw', 'user', ..) by a list of phases
+ *
+ * @name phases
+ * @param {number[] | Pattern} phases List of [0, 1) phases for partials. 0th entry is the fundamental phase (i.e. DC offset is skipped)
+ * @example
+ * // Phase cancellation
+ * s("saw").seg(8).n(irand(12)).scale("G#1:minor")
+ *   .partials(partials([1, 1, 1]))
+ *   .superimpose(x => x.phases([0.5, 0.5, 0.5]))
+ */
+Pattern.prototype.phases = function (list) {
+  return this.withValue((v) => (l) => ({ ...v, phases: l })).appLeft(_ensureListPattern(list));
+};
+
+// Also create a top-level function
+export const phases = (list) => {
+  return _ensureListPattern(list).as('phases');
+};

packages/core/repl.mjs

@@ -152,9 +152,9 @@ export function repl({
         // allows muting a pattern x with x_ or _x
         return silence;
       }
-      if (id === '$') {
+      if (id.includes('$')) {
         // allows adding anonymous patterns with $:
-        id = `$${anonymousIndex}`;
+        id = `${id}${anonymousIndex}`;
         anonymousIndex++;
       }
       pPatterns[id] = this;
@@ -215,8 +215,19 @@ export function repl({
       let { pattern, meta } = await _evaluate(code, transpiler, transpilerOptions);
       if (Object.keys(pPatterns).length) {
         let patterns = [];
+        let soloActive = false;
         for (const [key, value] of Object.entries(pPatterns)) {
-          patterns.push(value.withState((state) => state.setControls({ id: key })));
+          // handle soloed patterns ex: S$: s("bd!4")
+          const isSolod = key.length > 1 && key.startsWith('S');
+          if (isSolod && soloActive === false) {
+            // first time we see a soloed pattern, clear existing patterns
+            patterns = [];
+            soloActive = true;
+          }
+          if (!soloActive || (soloActive && isSolod)) {
+            const valWithState = value.withState((state) => state.setControls({ id: key }));
+            patterns.push(valWithState);
+          }
         }
         if (eachTransform) {
           // Explicit lambda so only element (not index and array) are passed
@@ -227,8 +238,8 @@ export function repl({
         pattern = eachTransform(pattern);
       }
       if (allTransforms.length) {
-        for (let i in allTransforms) {
-          pattern = allTransforms[i](pattern);
+        for (const transform of allTransforms) {
+          pattern = transform(pattern);
         }
       }
 

packages/core/signal.mjs

@@ -228,7 +228,7 @@ const timeToRands = (t, n) => timeToRandsPrime(timeToIntSeed(t), n);
 export const run = (n) => saw.range(0, n).round().segment(n);
 
 /**
- * Creates a pattern from a binary number.
+ * Creates a binary pattern from a number.
  *
  * @name binary
  * @param {number} n - input number to convert to binary
@@ -242,7 +242,7 @@ export const binary = (n) => {
 };
 
 /**
- * Creates a pattern from a binary number, padded to n bits long.
+ * Creates a binary pattern from a number, padded to n bits long.
  *
  * @name binaryN
  * @param {number} n - input number to convert to binary
@@ -258,6 +258,51 @@ export const binaryN = (n, nBits = 16) => {
   return reify(n).segment(nBits).brshift(bitPos).band(pure(1));
 };
 
+/**
+ * Creates a binary list pattern from a number.
+ *
+ * @name binaryL
+ * @param {number} n - input number to convert to binary
+ * s("saw").seg(8)
+ *   .partials(binaryL(irand(4096).add(1)))
+ */
+export const binaryL = (n) => {
+  const nBits = reify(n).log2(0).floor().add(1);
+  return binaryNL(n, nBits);
+};
+
+/**
+ * Creates a binary list pattern from a number, padded to n bits long.
+ *
+ * @name binaryNL
+ * @param {number} n - input number to convert to binary
+ * @param {number} nBits - pattern length, defaults to 16
+ */
+export const binaryNL = (n, nBits = 16) => {
+  return reify(n)
+    .withValue((v) => (bits) => {
+      const bList = [];
+      for (let i = bits - 1; i >= 0; i--) {
+        bList.push((v >> i) & 1);
+      }
+      return bList;
+    })
+    .appLeft(reify(nBits));
+};
+
+/**
+ * Creates a list of random numbers of the given length
+ *
+ * @name randL
+ * @param {number} n Number of random numbers to sample
+ * @example
+ * s("saw").seg(16).n(irand(12)).scale("F1:minor")
+ *   .partials(randL(8))
+ */
+export const randL = (n) => {
+  return signal((t) => (nVal) => timeToRands(t, nVal).map(Math.abs)).appLeft(reify(n));
+};
+
 export const randrun = (n) => {
   return signal((t) => {
     // Without adding 0.5, the first cycle is always 0,1,2,3,...
@@ -479,7 +524,7 @@ export const wchoose = (...pairs) => wchooseWith(rand, ...pairs);
  * @example
  * wchooseCycles(["bd",10], ["hh",1], ["sd",1]).s().fast(8)
  * @example
- * wchooseCycles(["bd bd bd",5], ["hh hh hh",3], ["sd sd sd",1]).fast(4).s()
+ * wchooseCycles(["c c c",5], ["a a a",3], ["f f f",1]).fast(4).note()
  * @example
  * // The probability can itself be a pattern
  * wchooseCycles(["bd(3,8)","<5 0>"], ["hh hh hh",3]).fast(4).s()

packages/sampler/sample-server.mjs

@@ -9,6 +9,7 @@ import readline from 'readline';
 import os from 'os';
 
 const LOG = !!process.env.LOG || false;
+const PORT = process.env.PORT || 5432;
 const VALID_AUDIO_EXTENSIONS = ['wav', 'mp3', 'ogg'];
 
 const isAudioFile = (f) => {
@@ -54,7 +55,6 @@ async function getBanks(directory, flat = false) {
     banks[bank].push(subDir);
     return subDir;
   });
-  banks._base = `http://localhost:5432`;
   return { banks, files };
 }
 
@@ -134,8 +134,6 @@ const server = http.createServer(async (req, res) => {
   readStream.pipe(res);
 });
 
-// eslint-disable-next-line
-const PORT = process.env.PORT || 5432;
 const IP_ADDRESS = '0.0.0.0';
 let IP;
 const networkInterfaces = os.networkInterfaces();

packages/superdough/README.md

@@ -89,7 +89,7 @@ superdough({ s: 'bd', delay: 0.5 }, 0, 1);
   - `decay`: seconds of decay phase
   - `sustain`: gain of sustain phase
   - `release`: seconds of release phase
-- `deadline`: seconds until the sound should play (0 = immediate)
+- `deadline`: seconds from audio context initialization before playing the sound (getAudioContextCurrentTime() = immediate)
 - `duration`: seconds the sound should last. optional for one shot samples, required for synth sounds
 
 ### registerSynthSounds()

packages/superdough/helpers.mjs

@@ -191,8 +191,7 @@ export function applyParameterModulators(audioContext, param, start, end, envelo
   const lfo = getParamLfo(audioContext, param, start, end, lfoValues);
   return { lfo, disconnect: () => lfo?.disconnect() };
 }
-
-export function createFilter(context, start, end, params, cps) {
+export function createFilter(context, start, end, params, cps, cycle) {
   let {
     frequency,
     anchor,
@@ -202,12 +201,14 @@ export function createFilter(context, start, end, params, cps) {
     q = 1,
     drive = 0.69,
     depth,
+    depthfrequency,
     dcoffset = -0.5,
     skew,
     shape,
     rate,
     sync,
   } = params;
+
   let frequencyParam, filter;
   if (model === 'ladder') {
     filter = getWorklet(context, 'ladder-processor', { frequency, q, drive });
@@ -238,8 +239,25 @@ export function createFilter(context, start, end, params, cps) {
   if (sync != null) {
     rate = cps * sync;
   }
-  const lfoValues = { depth, dcoffset, skew, shape, frequency: rate };
-  getParamLfo(context, frequencyParam, start, end, lfoValues);
+  const hasLFO = [depth, depthfrequency, skew, shape, rate].some((v) => v !== undefined);
+  if (hasLFO) {
+    depth = depth ?? 1;
+    const time = cycle / cps;
+    const modDepth = depthfrequency ?? (depth ?? 1) * frequency;
+    const lfoValues = {
+      depth: modDepth,
+      dcoffset,
+      skew,
+      shape,
+      frequency: rate ?? cps,
+      min: -frequency + 30,
+      max: 20000 - frequency,
+      time,
+      curve: 1,
+    };
+    getParamLfo(context, frequencyParam, start, end, lfoValues);
+  }
+
   return filter;
 }
 
@@ -262,7 +280,15 @@ export function drywet(dry, wet, wetAmount = 0) {
   let mix = ac.createGain();
   dry_gain.connect(mix);
   wet_gain.connect(mix);
-  return mix;
+  return {
+    node: mix,
+    onended: () => {
+      dry_gain.disconnect(mix);
+      wet_gain.disconnect(mix);
+      dry.disconnect(dry_gain);
+      wet.disconnect(wet_gain);
+    },
+  };
 }
 
 let curves = ['linear', 'exponential'];
@@ -297,6 +323,10 @@ export function getVibratoOscillator(param, value, t) {
     gain.gain.value = vibmod * 100;
     vibratoOscillator.connect(gain);
     gain.connect(param);
+    vibratoOscillator.onended = () => {
+      gain.disconnect(param);
+      vibratoOscillator.disconnect(gain);
+    };
     vibratoOscillator.start(t);
     return vibratoOscillator;
   }
@@ -350,9 +380,9 @@ const mod = (freq, range = 1, type = 'sine') => {
   }
 
   osc.start();
-  const g = new GainNode(ctx, { gain: range });
+  const g = gainNode(range);
   osc.connect(g); // -range, range
-  return { node: g, stop: (t) => osc.stop(t) };
+  return { node: g, stop: (t) => osc.stop(t), osc: osc };
 };
 const fm = (frequencyparam, harmonicityRatio, modulationIndex, wave = 'sine') => {
   const carrfreq = frequencyparam.value;
@@ -404,6 +434,11 @@ export function applyFM(param, value, begin) {
       modulator.connect(envGain);
       envGain.connect(param);
     }
+    fmmod.osc.onended = () => {
+      envGain.disconnect();
+      modulator.disconnect();
+      fmmod.osc.disconnect();
+    };
   }
   return { stop };
 }
@@ -505,7 +540,7 @@ export const getDistortion = (distort, postgain, algorithm) => {
 };
 
 export const getFrequencyFromValue = (value, defaultNote = 36) => {
-  let { note, freq } = value;
+  let { note, freq, octave = 0 } = value;
   note = note || defaultNote;
   if (typeof note === 'string') {
     note = noteToMidi(note); // e.g. c3 => 48
@@ -514,7 +549,7 @@ export const getFrequencyFromValue = (value, defaultNote = 36) => {
   if (!freq && typeof note === 'number') {
     freq = midiToFreq(note); // + 48);
   }
-
+  freq *= Math.pow(2, octave);
   return Number(freq);
 };
 

packages/superdough/noise.mjs

@@ -65,8 +65,9 @@ export function getNoiseOscillator(type = 'white', t, density = 0.02) {
 export function getNoiseMix(inputNode, wet, t) {
   const noiseOscillator = getNoiseOscillator('pink', t);
   const noiseMix = drywet(inputNode, noiseOscillator.node, wet);
+  noiseOscillator.node.onended = () => noiseMix.onended();
   return {
-    node: noiseMix,
+    node: noiseMix.node,
     stop: (time) => noiseOscillator?.stop(time),
   };
 }

packages/superdough/reverbGen.mjs

@@ -104,6 +104,8 @@ var applyGradualLowpass = function (input, lpFreqStart, lpFreqEnd, lpFreqEndAt,
   player.start();
   context.oncomplete = function (event) {
     callback(event.renderedBuffer);
+    filter.disconnect();
+    player.disconnect();
   };
   context.startRendering();
 

packages/superdough/sampler.mjs

@@ -1,4 +1,4 @@
-import { getCommonSampleInfo } from './util.mjs';
+import { getBaseURL, getCommonSampleInfo } from './util.mjs';
 import { registerSound, registerWaveTable } from './index.mjs';
 import { getAudioContext } from './audioContext.mjs';
 import { getADSRValues, getParamADSR, getPitchEnvelope, getVibratoOscillator } from './helpers.mjs';
@@ -211,7 +211,7 @@ export async function fetchSampleMap(url) {
     // not a browser
     return;
   }
-  const base = url.split('/').slice(0, -1).join('/');
+  const base = getBaseURL(url);
   if (typeof fetch === 'undefined') {
     // skip fetch when in node / testing
     return;

packages/superdough/superdough.mjs

@@ -481,7 +481,7 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
   // oldest audio nodes will be destroyed if maximum polyphony is exceeded
   for (let i = 0; i <= activeSoundSources.size - maxPolyphony; i++) {
     const ch = activeSoundSources.entries().next();
-    const source = ch.value[1];
+    const source = ch.value[1].deref();
     const chainID = ch.value[0];
     const endTime = t + 0.25;
     source?.node?.gain?.linearRampToValueAtTime(0, endTime);
@@ -513,7 +513,7 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
 
     if (soundHandle) {
       sourceNode = soundHandle.node;
-      activeSoundSources.set(chainID, soundHandle);
+      activeSoundSources.set(chainID, new WeakRef(soundHandle)); // allow GC
     }
   } else {
     throw new Error(`sound ${s} not found! Is it loaded?`);
@@ -553,13 +553,14 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
       rate: 'lprate',
       sync: 'lpsync',
       depth: 'lpdepth',
+      depthfrequency: 'lpdepthfrequency',
       shape: 'lpshape',
       dcoffset: 'lpdc',
       skew: 'lpskew',
     };
     const lpParams = pickAndRename(value, lpMap);
     lpParams.type = 'lowpass';
-    let lp = () => createFilter(ac, t, end, lpParams, cps);
+    let lp = () => createFilter(ac, t, end, lpParams, cps, cycle);
     chain.push(lp());
     if (ftype === '24db') {
       chain.push(lp());
@@ -581,13 +582,14 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
       rate: 'hprate',
       sync: 'hpsync',
       depth: 'hpdepth',
+      depthfrequency: 'hpdepthfrequency',
       shape: 'hpshape',
       dcoffset: 'hpdc',
       skew: 'hpskew',
     };
     const hpParams = pickAndRename(value, hpMap);
     hpParams.type = 'highpass';
-    let hp = () => createFilter(ac, t, end, hpParams, cps);
+    let hp = () => createFilter(ac, t, end, hpParams, cps, cycle);
     chain.push(hp());
     if (ftype === '24db') {
       chain.push(hp());
@@ -609,13 +611,14 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
       rate: 'bprate',
       sync: 'bpsync',
       depth: 'bpdepth',
+      depthfrequency: 'bpdepthfrequency',
       shape: 'bpshape',
       dcoffset: 'bpdc',
       skew: 'bpskew',
     };
     const bpParams = pickAndRename(value, bpMap);
     bpParams.type = 'bandpass';
-    let bp = () => createFilter(ac, t, end, bpParams, cps);
+    let bp = () => createFilter(ac, t, end, bpParams, cps, cycle);
     chain.push(bp());
     if (ftype === '24db') {
       chain.push(bp());
@@ -665,6 +668,7 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
       curve: 1.5,
     });
     lfo.connect(amGain.gain);
+    audioNodes.push(lfo);
     chain.push(amGain);
   }
 
@@ -692,7 +696,8 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
   // delay
   if (delay > 0 && delaytime > 0 && delayfeedback > 0) {
     orbitBus.getDelay(delaytime, delayfeedback, t);
-    orbitBus.sendDelay(post, delay);
+    const send = orbitBus.sendDelay(post, delay);
+    audioNodes.push(send);
   }
   // reverb
   if (room > 0) {
@@ -708,7 +713,8 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
       roomIR = await loadBuffer(url, ac, ir, 0);
     }
     orbitBus.getReverb(roomsize, roomfade, roomlp, roomdim, roomIR, irspeed, irbegin);
-    orbitBus.sendReverb(post, room);
+    const send = orbitBus.sendReverb(post, room);
+    audioNodes.push(send);
   }
 
   if (djf != null) {

packages/superdough/superdoughoutput.mjs

@@ -78,14 +78,14 @@ export class Orbit {
     return this.reverbNode;
   }
   sendReverb(node, amount) {
-    effectSend(node, this.reverbNode, amount);
+    return effectSend(node, this.reverbNode, amount);
   }
 
   sendDelay(node, amount) {
-    effectSend(node, this.delayNode, amount);
+    return effectSend(node, this.delayNode, amount);
   }
 
-  duck(t, onsettime = 0, attacktime = 0.1, depth = 1) {
+  duck(t, onsettime = 0, attacktime = 0.16, depth = 0.8) {
     const onset = onsettime;
     const attack = Math.max(attacktime, 0.002);
     const gainParam = this.output.gain;
@@ -178,7 +178,7 @@ export class SuperdoughAudioController {
     this.output.reset();
   }
 
-  duck(targetOrbits, t, onsettime = 0, attacktime = 0.1, depth = 1) {
+  duck(targetOrbits, t, onsettime = 0, attacktime = 0.16, depth = 0.8) {
     const targetArr = [targetOrbits].flat();
     const onsetArr = [onsettime].flat();
     const attackArr = [attacktime].flat();

packages/superdough/synth.mjs

@@ -15,9 +15,10 @@ import {
   noises,
   webAudioTimeout,
 } from './helpers.mjs';
+import { logger } from './logger.mjs';
 import { getNoiseMix, getNoiseOscillator } from './noise.mjs';
 
-const waveforms = ['triangle', 'square', 'sawtooth', 'sine'];
+const waveforms = ['triangle', 'square', 'sawtooth', 'sine', 'user'];
 const waveformAliases = [
   ['tri', 'triangle'],
   ['sqr', 'square'],
@@ -47,19 +48,17 @@ export function registerSynthSounds() {
           [0.001, 0.05, 0.6, 0.01],
         );
 
-        let sound = getOscillator(s, t, value);
-        let { node: o, stop, triggerRelease } = sound;
-
         // turn down
         const g = gainNode(0.3);
 
-        const { duration } = value;
-
-        o.onended = () => {
-          o.disconnect();
+        let sound = getOscillator(s, t, value, () => {
           g.disconnect();
           onended();
-        };
+        });
+
+        let { node: o, stop, triggerRelease } = sound;
+
+        const { duration } = value;
 
         const envGain = gainNode(1);
         let node = o.connect(g).connect(envGain);
@@ -414,9 +413,13 @@ export function registerSynthSounds() {
   waveformAliases.forEach(([alias, actual]) => soundMap.set({ ...soundMap.get(), [alias]: soundMap.get()[actual] }));
 }
 
-export function waveformN(partials, type) {
-  const real = new Float32Array(partials + 1);
-  const imag = new Float32Array(partials + 1);
+const PI2 = 2 * Math.PI;
+export function waveformN(partials, phases, type) {
+  const isList = typeof partials === 'object';
+  partials = isList ? partials : new Float32Array(partials).fill(1);
+  const len = partials.length;
+  const real = new Float32Array(len + 1);
+  const imag = new Float32Array(len + 1);
   const ac = getAudioContext();
   const osc = ac.createOscillator();
 
@@ -424,20 +427,29 @@ export function waveformN(partials, type) {
     sawtooth: (n) => [0, -1 / n],
     square: (n) => [0, n % 2 === 0 ? 0 : 1 / n],
     triangle: (n) => [n % 2 === 0 ? 0 : 1 / (n * n), 0],
+    user: (_n) => [0, 1],
   };
 
   if (!terms[type]) {
     throw new Error(`unknown wave type ${type}`);
   }
 
-  real[0] = 0; // dc offset
-  imag[0] = 0;
-  let n = 1;
-  while (n <= partials) {
-    const [r, i] = terms[type](n);
-    real[n] = r;
-    imag[n] = i;
-    n++;
+  for (let n = 0; n < len; n++) {
+    const mag = partials[n];
+    const [r, i] = terms[type](n + 1); // we skip n === 0 as this is dc offset
+    const phase = phases?.[n] ?? 0;
+    // Scale by `partials`
+    let R = r * mag;
+    let I = i * mag;
+    // Apply rotation by the phase
+    if (phase !== 0) {
+      const c = Math.cos(PI2 * phase);
+      const s = Math.sin(PI2 * phase);
+      R = c * R - s * I;
+      I = s * R + c * I;
+    }
+    real[n + 1] = R;
+    imag[n + 1] = I;
   }
 
   const wave = ac.createPeriodicWave(real, imag);
@@ -446,21 +458,28 @@ export function waveformN(partials, type) {
 }
 
 // expects one of waveforms as s
-export function getOscillator(s, t, value) {
-  let { n: partials, duration, noise = 0 } = value;
+export function getOscillator(s, t, value, onended) {
+  const { duration, noise = 0 } = value;
+  const partials = value.partials ?? value.n;
   let o;
+  if (s === 'user' && !partials) {
+    logger(
+      `[superdough] Synth 'user' was selected, but partials not specified. Defaulting to triangle. Use pat.partials to setup custom waveform`,
+    );
+    s = 'triangle';
+  }
+  s = s === 'user' && !partials ? 'triangle' : s;
   // If no partials are given, use stock waveforms
-  if (!partials || s === 'sine') {
+  if (!partials || partials?.length === 0 || s === 'sine') {
     o = getAudioContext().createOscillator();
     o.type = s || 'triangle';
   }
   // generate custom waveform if partials are given
   else {
-    o = waveformN(partials, s);
+    o = waveformN(partials, value.phases, s);
   }
   // set frequency
   o.frequency.value = getFrequencyFromValue(value);
-  o.start(t);
 
   let vibratoOscillator = getVibratoOscillator(o.detune, value, t);
 
@@ -473,6 +492,13 @@ export function getOscillator(s, t, value) {
     noiseMix = getNoiseMix(o, noise, t);
   }
 
+  o.onended = () => {
+    o.disconnect();
+    noiseMix?.node.disconnect();
+    onended();
+  };
+  o.start(t);
+
   return {
     node: noiseMix?.node || o,
     stop: (time) => {

packages/superdough/util.mjs

@@ -114,3 +114,13 @@ export function getCommonSampleInfo(hapValue, bank) {
 export const pickAndRename = (source, map) => {
   return Object.fromEntries(Object.entries(map).map(([newKey, oldKey]) => [newKey, source[oldKey]]));
 };
+
+export const getBaseURL = (url) => {
+  try {
+    // For real URLs
+    return new URL('.', new URL(url)).href.replace(/\/$/, ''); // removes trailing slash
+  } catch {
+    // For pseudo URLS
+    return url.split('/').slice(0, -1).join('/');
+  }
+};

packages/superdough/wavetable.mjs

@@ -1,5 +1,5 @@
 import { getAudioContext, registerSound } from './index.mjs';
-import { getCommonSampleInfo } from './util.mjs';
+import { getBaseURL, getCommonSampleInfo } from './util.mjs';
 import {
   applyFM,
   applyParameterModulators,
@@ -190,6 +190,7 @@ export const tables = async (url, frameLen, json, options = {}) => {
   if (url.startsWith('local:')) {
     url = `http://localhost:5432`;
   }
+  const base = getBaseURL(url);
   if (typeof fetch !== 'function') {
     // not a browser
     return;
@@ -200,7 +201,7 @@ export const tables = async (url, frameLen, json, options = {}) => {
   }
   return fetch(url)
     .then((res) => res.json())
-    .then((json) => _processTables(json, url, frameLen, options))
+    .then((json) => _processTables(json, base, frameLen, options))
     .catch((error) => {
       console.error(error);
       throw new Error(`error loading "${url}"`);

packages/superdough/worklets.mjs

@@ -6,51 +6,57 @@ import OLAProcessor from './ola-processor';
 import FFT from './fft.js';
 import { getDistortionAlgorithm } from './helpers.mjs';
 
+const blockSize = 128;
+const PI = Math.PI;
+const TWO_PI = 2 * PI;
+const INVSR = 1 / sampleRate;
+
 const clamp = (num, min, max) => Math.min(Math.max(num, min), max);
 const mod = (n, m) => ((n % m) + m) % m;
 const lerp = (a, b, n) => n * (b - a) + a;
 const pv = (arr, n) => arr[n] ?? arr[0];
 const frac = (x) => x - Math.floor(x);
-const ffloor = (x) => x | 0; // fast floor for non-negative
 
-const getUnisonDetune = (unison, detune, voiceIndex) => {
-  if (unison < 2) {
-    return 0;
-  }
-  return lerp(-detune * 0.5, detune * 0.5, voiceIndex / (unison - 1));
+// Fast integer ops for non-negative values
+const ffloor = (x) => x | 0;
+const fround = (x) => ffloor(x + 0.5);
+const fceil = (x) => ffloor(x + 1);
+const ffrac = (x) => x - ffloor(x);
+
+const fast_tanh = (x) => {
+  const x2 = x ** 2;
+  return (x * (27.0 + x2)) / (27.0 + 9.0 * x2);
 };
+
+// Optimized per-voice detuner which precomputes constants
+const getDetuner = (unison, detune) => {
+  if (unison < 2) {
+    return (_voiceIdx) => 0;
+  }
+  const scale = detune / (unison - 1);
+  const center = detune * 0.5;
+  return (voiceIdx) => voiceIdx * scale - center;
+};
+
 const applySemitoneDetuneToFrequency = (frequency, detune) => {
   return frequency * Math.pow(2, detune / 12);
 };
 
-// Restrict phase to the range [0, maxPhase) via wrapping
-function wrapPhase(phase, maxPhase = 1) {
-  if (phase >= maxPhase) {
-    phase -= maxPhase;
-  } else if (phase < 0) {
-    phase += maxPhase;
-  }
-  return phase;
-}
-const blockSize = 128;
 // Smooth waveshape near discontinuities to remove frequencies above Nyquist and prevent aliasing
 // referenced from https://www.kvraudio.com/forum/viewtopic.php?t=375517
 function polyBlep(phase, dt) {
   dt = Math.min(dt, 1 - dt);
+  const invdt = 1 / dt;
   // Start of cycle
   if (phase < dt) {
-    phase /= dt;
-    // 2 * (phase - phase^2/2 - 0.5)
-    return phase + phase - phase * phase - 1;
+    phase *= invdt;
+    return 2 * phase - phase ** 2 - 1;
   }
-
   // End of cycle
   else if (phase > 1 - dt) {
-    phase = (phase - 1) / dt;
-    // 2 * (phase^2/2 + phase + 0.5)
-    return phase * phase + phase + phase + 1;
+    phase = (phase - 1) * invdt;
+    return phase ** 2 + 2 * phase + 1;
   }
-
   // 0 otherwise
   else {
     return 0;
@@ -66,7 +72,7 @@ const waveshapes = {
     return phase / skew;
   },
   sine(phase) {
-    return Math.sin(Math.PI * 2 * phase) * 0.5 + 0.5;
+    return Math.sin(TWO_PI * phase) * 0.5 + 0.5;
   },
   ramp(phase) {
     return phase;
@@ -100,12 +106,6 @@ const waveshapes = {
     return v - polyBlep(phase, dt);
   },
 };
-function getParamValue(block, param) {
-  if (param.length > 1) {
-    return param[block];
-  }
-  return param[0];
-}
 
 const waveShapeNames = Object.keys(waveshapes);
 class LFOProcessor extends AudioWorkletProcessor {
@@ -165,9 +165,9 @@ class LFOProcessor extends AudioWorkletProcessor {
     const blockSize = output[0].length ?? 0;
 
     if (this.phase == null) {
-      this.phase = mod(time * frequency + phaseoffset, 1);
+      this.phase = ffrac(time * frequency + phaseoffset);
     }
-    const dt = frequency / sampleRate;
+    const dt = frequency * INVSR;
     for (let n = 0; n < blockSize; n++) {
       for (let i = 0; i < output.length; i++) {
         let modval = (waveshapes[shape](this.phase, skew) + dcoffset) * depth;
@@ -293,8 +293,8 @@ class TwoPoleFilter {
     // Out of bound values can produce NaNs
     resonance = clamp(resonance, 0, 1);
     cutoff = clamp(cutoff, 0, sampleRate / 2 - 1);
-    const c = clamp(2 * Math.sin(cutoff * (_PI / sampleRate)), 0, 1.14);
-    const r = Math.pow(0.5, (resonance + 0.125) / 0.125);
+    const c = clamp(2 * Math.sin(cutoff * PI * INVSR), 0, 1.14);
+    const r = Math.pow(0.5, 8 * resonance + 1);
     const mrc = 1 - r * c;
     this.s0 = mrc * this.s0 - c * this.s1 + c * s; // bpf
     this.s1 = mrc * this.s1 + c * this.s0; // lpf
@@ -353,11 +353,6 @@ class DJFProcessor extends AudioWorkletProcessor {
 }
 registerProcessor('djf-processor', DJFProcessor);
 
-function fast_tanh(x) {
-  const x2 = x * x;
-  return (x * (27.0 + x2)) / (27.0 + 9.0 * x2);
-}
-const _PI = 3.14159265359;
 //adapted from https://github.com/TheBouteillacBear/webaudioworklet-wasm?tab=MIT-1-ov-file
 class LadderProcessor extends AudioWorkletProcessor {
   static get parameterDescriptors() {
@@ -395,7 +390,7 @@ class LadderProcessor extends AudioWorkletProcessor {
     const drive = clamp(Math.exp(parameters.drive[0]), 0.1, 2000);
 
     let cutoff = parameters.frequency[0];
-    cutoff = (cutoff * 2 * _PI) / sampleRate;
+    cutoff = cutoff * TWO_PI * INVSR;
     cutoff = cutoff > 1 ? 1 : cutoff;
 
     const k = Math.min(8, resonance * 0.13);
@@ -508,6 +503,7 @@ class SuperSawOscillatorProcessor extends AudioWorkletProcessor {
         name: 'voices',
         defaultValue: 5,
         min: 1,
+        automationRate: 'k-rate',
       },
     ];
   }
@@ -519,40 +515,37 @@ class SuperSawOscillatorProcessor extends AudioWorkletProcessor {
       // this.port.postMessage({ type: 'onended' });
       return false;
     }
-
     const output = outputs[0];
-
+    const voices = params.voices[0]; // k-rate
     for (let i = 0; i < output[0].length; i++) {
       const detune = pv(params.detune, i);
-      const voices = pv(params.voices, i);
       const freqspread = pv(params.freqspread, i);
       const panspread = pv(params.panspread, i) * 0.5 + 0.5;
-      const gain1 = Math.sqrt(1 - panspread);
-      const gain2 = Math.sqrt(panspread);
+      let gainL = Math.sqrt(1 - panspread);
+      let gainR = Math.sqrt(panspread);
       let freq = pv(params.frequency, i);
       // Main detuning
       freq = applySemitoneDetuneToFrequency(freq, detune / 100);
+      const detuner = getDetuner(voices, freqspread);
       for (let n = 0; n < voices; n++) {
-        const isOdd = (n & 1) == 1;
-        let gainL = gain1;
-        let gainR = gain2;
-        // invert right and left gain
-        if (isOdd) {
-          gainL = gain2;
-          gainR = gain1;
-        }
         // Individual voice detuning
-        const freqVoice = applySemitoneDetuneToFrequency(freq, getUnisonDetune(voices, freqspread, n));
+        const freqVoice = applySemitoneDetuneToFrequency(freq, detuner(n));
         // We must wrap this here because it is passed into sawblep below which
         // has domain [0, 1]
-        const dt = mod(freqVoice / sampleRate, 1);
+        const dt = frac(freqVoice * INVSR);
         this.phase[n] = this.phase[n] ?? Math.random();
         const v = waveshapes.sawblep(this.phase[n], dt);
 
-        output[0][i] = output[0][i] + v * gainL;
-        output[1][i] = output[1][i] + v * gainR;
+        output[0][i] += v * gainL;
+        output[1][i] += v * gainR;
 
-        this.phase[n] = wrapPhase(this.phase[n] + dt);
+        let pn = this.phase[n] + dt;
+        if (pn >= 1.0) pn -= 1.0;
+        this.phase[n] = pn;
+        // invert right and left gain
+        const tmp = gainL;
+        gainL = gainR;
+        gainR = tmp;
       }
     }
     return true;
@@ -564,12 +557,16 @@ registerProcessor('supersaw-oscillator', SuperSawOscillatorProcessor);
 // Phase Vocoder sourced from https://github.com/olvb/phaze/tree/master?tab=readme-ov-file
 const BUFFERED_BLOCK_SIZE = 2048;
 
+const hannCache = new Map();
 function genHannWindow(length) {
-  let win = new Float32Array(length);
-  for (var i = 0; i < length; i++) {
-    win[i] = 0.5 * (1 - Math.cos((2 * Math.PI * i) / length));
+  if (!hannCache.has(length)) {
+    const win = new Float32Array(length);
+    for (let i = 0; i < length; i++) {
+      win[i] = 0.5 * (1 - Math.cos((TWO_PI * i) / length));
+    }
+    hannCache.set(length, win);
   }
-  return win;
+  return hannCache.get(length);
 }
 
 class PhaseVocoderProcessor extends OLAProcessor {
@@ -587,11 +584,10 @@ class PhaseVocoderProcessor extends OLAProcessor {
       blockSize: BUFFERED_BLOCK_SIZE,
     };
     super(options);
-
-    this.fftSize = this.blockSize;
     this.timeCursor = 0;
-
-    this.hannWindow = genHannWindow(this.blockSize);
+    this.fftSize = this.blockSize;
+    this.invfftSize = 1 / this.fftSize;
+    this.hannWindow = genHannWindow(this.fftSize);
     // prepare FFT and pre-allocate buffers
     this.fft = new FFT(this.fftSize);
     this.freqComplexBuffer = this.fft.createComplexArray();
@@ -604,52 +600,43 @@ class PhaseVocoderProcessor extends OLAProcessor {
 
   processOLA(inputs, outputs, parameters) {
     // no automation, take last value
-
     let pitchFactor = parameters.pitchFactor[parameters.pitchFactor.length - 1];
-
     if (pitchFactor < 0) {
       pitchFactor = pitchFactor * 0.25;
     }
     pitchFactor = Math.max(0, pitchFactor + 1);
-
-    for (var i = 0; i < this.nbInputs; i++) {
-      for (var j = 0; j < inputs[i].length; j++) {
-        // big assumption here: output is symetric to input
-        var input = inputs[i][j];
-        var output = outputs[i][j];
-
+    for (let i = 0; i < this.nbInputs; i++) {
+      for (let j = 0; j < inputs[i].length; j++) {
+        const input = inputs[i][j];
+        const output = outputs[i][j];
         this.applyHannWindow(input);
-
         this.fft.realTransform(this.freqComplexBuffer, input);
-
         this.computeMagnitudes();
         this.findPeaks();
         this.shiftPeaks(pitchFactor);
-
         this.fft.completeSpectrum(this.freqComplexBufferShifted);
         this.fft.inverseTransform(this.timeComplexBuffer, this.freqComplexBufferShifted);
         this.fft.fromComplexArray(this.timeComplexBuffer, output);
         this.applyHannWindow(output);
       }
     }
-
     this.timeCursor += this.hopSize;
   }
 
   /** Apply Hann window in-place */
   applyHannWindow(input) {
-    for (var i = 0; i < this.blockSize; i++) {
-      input[i] = input[i] * this.hannWindow[i] * 1.62;
+    for (let i = 0; i < this.blockSize; i++) {
+      input[i] *= this.hannWindow[i] * 1.62;
     }
   }
 
   /** Compute squared magnitudes for peak finding **/
   computeMagnitudes() {
-    var i = 0,
+    let i = 0,
       j = 0;
     while (i < this.magnitudes.length) {
-      let real = this.freqComplexBuffer[j];
-      let imag = this.freqComplexBuffer[j + 1];
+      const real = this.freqComplexBuffer[j];
+      const imag = this.freqComplexBuffer[j + 1];
       // no need to sqrt for peak finding
       this.magnitudes[i] = real ** 2 + imag ** 2;
       i += 1;
@@ -660,12 +647,10 @@ class PhaseVocoderProcessor extends OLAProcessor {
   /** Find peaks in spectrum magnitudes **/
   findPeaks() {
     this.nbPeaks = 0;
-    var i = 2;
-    let end = this.magnitudes.length - 2;
-
+    let i = 2;
+    const end = this.magnitudes.length - 2;
     while (i < end) {
-      let mag = this.magnitudes[i];
-
+      const mag = this.magnitudes[i];
       if (this.magnitudes[i - 1] >= mag || this.magnitudes[i - 2] >= mag) {
         i++;
         continue;
@@ -674,7 +659,6 @@ class PhaseVocoderProcessor extends OLAProcessor {
         i++;
         continue;
       }
-
       this.peakIndexes[this.nbPeaks] = i;
       this.nbPeaks++;
       i += 2;
@@ -685,53 +669,44 @@ class PhaseVocoderProcessor extends OLAProcessor {
   shiftPeaks(pitchFactor) {
     // zero-fill new spectrum
     this.freqComplexBufferShifted.fill(0);
-
-    for (var i = 0; i < this.nbPeaks; i++) {
-      let peakIndex = this.peakIndexes[i];
-      let peakIndexShifted = Math.round(peakIndex * pitchFactor);
-
+    for (let i = 0; i < this.nbPeaks; i++) {
+      const peakIndex = this.peakIndexes[i];
+      const peakIndexShifted = fround(peakIndex * pitchFactor);
       if (peakIndexShifted > this.magnitudes.length) {
         break;
       }
-
       // find region of influence
-      var startIndex = 0;
-      var endIndex = this.fftSize;
+      let startIndex = 0;
+      let endIndex = this.fftSize;
       if (i > 0) {
-        let peakIndexBefore = this.peakIndexes[i - 1];
-        startIndex = peakIndex - Math.floor((peakIndex - peakIndexBefore) / 2);
+        startIndex = peakIndex - fround((peakIndex - this.peakIndexes[i - 1]) / 2);
       }
       if (i < this.nbPeaks - 1) {
-        let peakIndexAfter = this.peakIndexes[i + 1];
-        endIndex = peakIndex + Math.ceil((peakIndexAfter - peakIndex) / 2);
+        endIndex = peakIndex + fceil((this.peakIndexes[i + 1] - peakIndex) / 2);
       }
-
       // shift whole region of influence around peak to shifted peak
-      let startOffset = startIndex - peakIndex;
-      let endOffset = endIndex - peakIndex;
-      for (var j = startOffset; j < endOffset; j++) {
-        let binIndex = peakIndex + j;
-        let binIndexShifted = peakIndexShifted + j;
-
+      const startOffset = startIndex - peakIndex;
+      const endOffset = endIndex - peakIndex;
+      const omegaDelta = TWO_PI * this.invfftSize * (peakIndexShifted - peakIndex);
+      const phaseShiftReal = Math.cos(omegaDelta * this.timeCursor);
+      const phaseShiftImag = Math.sin(omegaDelta * this.timeCursor);
+      for (let j = startOffset; j < endOffset; j++) {
+        const binIndex = peakIndex + j;
+        const binIndexShifted = peakIndexShifted + j;
         if (binIndexShifted >= this.magnitudes.length) {
           break;
         }
-
         // apply phase correction
-        let omegaDelta = (2 * Math.PI * (binIndexShifted - binIndex)) / this.fftSize;
-        let phaseShiftReal = Math.cos(omegaDelta * this.timeCursor);
-        let phaseShiftImag = Math.sin(omegaDelta * this.timeCursor);
+        const indexReal = 2 * binIndex;
+        const indexImag = indexReal + 1;
+        const valueReal = this.freqComplexBuffer[indexReal];
+        const valueImag = this.freqComplexBuffer[indexImag];
 
-        let indexReal = binIndex * 2;
-        let indexImag = indexReal + 1;
-        let valueReal = this.freqComplexBuffer[indexReal];
-        let valueImag = this.freqComplexBuffer[indexImag];
+        const valueShiftedReal = valueReal * phaseShiftReal - valueImag * phaseShiftImag;
+        const valueShiftedImag = valueReal * phaseShiftImag + valueImag * phaseShiftReal;
 
-        let valueShiftedReal = valueReal * phaseShiftReal - valueImag * phaseShiftImag;
-        let valueShiftedImag = valueReal * phaseShiftImag + valueImag * phaseShiftReal;
-
-        let indexShiftedReal = binIndexShifted * 2;
-        let indexShiftedImag = indexShiftedReal + 1;
+        const indexShiftedReal = 2 * binIndexShifted;
+        const indexShiftedImag = indexShiftedReal + 1;
         this.freqComplexBufferShifted[indexShiftedReal] += valueShiftedReal;
         this.freqComplexBufferShifted[indexShiftedImag] += valueShiftedImag;
       }
@@ -745,11 +720,10 @@ registerProcessor('phase-vocoder-processor', PhaseVocoderProcessor);
 class PulseOscillatorProcessor extends AudioWorkletProcessor {
   constructor() {
     super();
-    this.pi = _PI;
-    this.phi = -this.pi; // phase
+    this.phi = -PI; // phase
     this.Y0 = 0; // feedback memories
     this.Y1 = 0;
-    this.PW = this.pi; // pulse width
+    this.PW = PI; // pulse width
     this.B = 2.3; // feedback coefficient
     this.dphif = 0; // filtered phase increment
     this.envf = 0; // filtered envelope
@@ -806,11 +780,11 @@ class PulseOscillatorProcessor extends AudioWorkletProcessor {
       dphi;
 
     for (let i = 0; i < (output[0].length ?? 0); i++) {
-      const pw = (1 - clamp(getParamValue(i, params.pulsewidth), -0.99, 0.99)) * this.pi;
-      const detune = getParamValue(i, params.detune);
-      const freq = applySemitoneDetuneToFrequency(getParamValue(i, params.frequency), detune / 100);
+      const pw = (1 - clamp(pv(params.pulsewidth, i), -0.99, 0.99)) * PI;
+      const detune = pv(params.detune, i);
+      const freq = applySemitoneDetuneToFrequency(pv(params.frequency, i), detune / 100);
 
-      dphi = freq * (this.pi / (sampleRate * 0.5)); // phase increment
+      dphi = freq * TWO_PI * INVSR; // phase increment
       this.dphif += 0.1 * (dphi - this.dphif);
 
       env *= 0.9998; // exponential decay envelope
@@ -822,7 +796,7 @@ class PulseOscillatorProcessor extends AudioWorkletProcessor {
 
       // Waveform generation (half-Tomisawa oscillators)
       this.phi += this.dphif; // phase increment
-      if (this.phi >= this.pi) this.phi -= 2 * this.pi; // phase wrapping
+      if (this.phi >= PI) this.phi -= TWO_PI; // phase wrapping
 
       // First half-Tomisawa generator
       let out0 = Math.cos(this.phi + this.B * this.Y0); // self-phase modulation
@@ -852,24 +826,23 @@ const chyx = {
   /*bit reverse*/ br: function (x, size = 8) {
     if (size > 32) {
       throw new Error('br() Size cannot be greater than 32');
-    } else {
-      let result = 0;
-      for (let idx = 0; idx < size - 0; idx++) {
-        result += chyx.bitC(x, 2 ** idx, 2 ** (size - (idx + 1)));
-      }
-      return result;
     }
+    let result = 0;
+    for (let idx = 0; idx < size; idx++) {
+      result |= chyx.bitC(x, 1 << idx, 1 << (size - (idx + 1)));
+    }
+    return result;
   },
   /*sin that loops every 128 "steps", instead of every pi steps*/ sinf: function (x) {
-    return Math.sin(x / (128 / Math.PI));
+    return Math.sin((x * PI) / 128);
   },
   /*cos that loops every 128 "steps", instead of every pi steps*/ cosf: function (x) {
-    return Math.cos(x / (128 / Math.PI));
+    return Math.cos((x * PI) / 128);
   },
   /*tan that loops every 128 "steps", instead of every pi steps*/ tanf: function (x) {
-    return Math.tan(x / (128 / Math.PI));
+    return Math.tan((x * PI) / 128);
   },
-  /*converts t into a string composed of it's bits, regex's that*/ regG: function (t, X) {
+  /*converts t into a string composed of its bits; regexes that*/ regG: function (t, X) {
     return X.test(t.toString(2));
   },
 };
@@ -877,7 +850,7 @@ const chyx = {
 // Create shortened Math functions
 let mathParams, byteBeatHelperFuncs;
 function getByteBeatFunc(codetext) {
-  if ((mathParams || byteBeatHelperFuncs) == null) {
+  if (mathParams == null) {
     mathParams = Object.getOwnPropertyNames(Math);
     byteBeatHelperFuncs = mathParams.map((k) => Math[k]);
     const chyxNames = Object.getOwnPropertyNames(chyx);
@@ -910,7 +883,7 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
 
       this.func = getByteBeatFunc(codeText);
     };
-    this.initialOffset = null;
+    this.initialOffset = 0;
     this.t = null;
     this.func = null;
   }
@@ -957,18 +930,19 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
       this.t = params.begin[0] * sampleRate;
     }
     const output = outputs[0];
+    const scale = 256 * INVSR;
     for (let i = 0; i < output[0].length; i++) {
-      const detune = getParamValue(i, params.detune);
-      const freq = applySemitoneDetuneToFrequency(getParamValue(i, params.frequency), detune / 100);
-      let local_t = (this.t / (sampleRate / 256)) * freq + this.initialOffset;
+      const detune = pv(params.detune, i);
+      const freq = applySemitoneDetuneToFrequency(pv(params.frequency, i), detune / 100);
+      const local_t = scale * freq * this.t + this.initialOffset;
       const funcValue = this.func(local_t);
-      let signal = (funcValue & 255) / 127.5 - 1;
-      const out = signal * 0.2;
+      const signal = (funcValue & 255) / 127.5 - 1;
+      //prevent speaker blowout via clipping if threshold exceeds
+      const out = clamp(signal * 0.2, -0.4, 0.4);
       for (let c = 0; c < output.length; c++) {
-        //prevent speaker blowout via clipping if threshold exceeds
-        output[c][i] = clamp(out, -0.4, 0.4);
+        output[c][i] = out;
       }
-      this.t = this.t + 1;
+      this.t++;
     }
 
     return true; // keep the audio processing going
@@ -977,6 +951,102 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
 
 registerProcessor('byte-beat-processor', ByteBeatProcessor);
 
+class EnvelopeProcessor extends AudioWorkletProcessor {
+  static get parameterDescriptors() {
+    return [
+      { name: 'begin', defaultValue: 0 },
+      { name: 'end', defaultValue: 0 },
+      { name: 'attack', defaultValue: 0.005, minValue: 0 },
+      { name: 'decay', defaultValue: 0.14, minValue: 0 },
+      { name: 'sustain', defaultValue: 0, minValue: 0, maxValue: 1 },
+      { name: 'release', defaultValue: 0.1, minValue: 0 },
+      { name: 'attackCurve', defaultValue: 0, minValue: -1, maxValue: 1 },
+      { name: 'decayCurve', defaultValue: 0, minValue: -1, maxValue: 1 },
+      { name: 'releaseCurve', defaultValue: 0, minValue: -1, maxValue: 1 },
+      { name: 'peak', defaultValue: 1 },
+      { name: 'retrigger', defaultValue: 1, minValue: 0, maxValue: 1 },
+    ];
+  }
+
+  constructor() {
+    super();
+    this.val = 0;
+    this.segIdx = 0;
+    this.state = 0;
+    this.beginTime = 0;
+    this.endTime = 0;
+    this.attackStart = 0;
+  }
+
+  _warp(phase, curvature, strength = 8) {
+    if (phase === 0 || phase === 1) return phase; // fast exit
+    if (curvature > 0) {
+      // snappier
+      const exp = 1 + strength * curvature;
+      return 1 - Math.pow(1 - phase, exp);
+    } else {
+      // more calm
+      const exp = 1 - strength * curvature;
+      return Math.pow(phase, exp);
+    }
+  }
+
+  _advance(start, target, time, curvature) {
+    if (time === 0 || start === target) {
+      this.val = target;
+    } else {
+      // We compute our progress through this section of the envelope in time
+      // as a `phase` value, which is warped by the curvature, and then used
+      // to compute the value of the envelope at that time
+      const phase = Math.min(1, (currentTime - this.beginTime) / time);
+      const phaseWarped = this._warp(phase, curvature);
+      this.val = start + (target - start) * phaseWarped;
+    }
+  }
+
+  process(_inputs, outputs, params) {
+    const out = outputs[0][0];
+    if (!out) return true;
+    const begin = pv(params.begin, 0);
+    const retrigger = pv(params.retrigger, 0) >= 0.5; // convert to bool
+    if (begin !== this.beginTime && (this.state === 0 || retrigger)) {
+      // triggered
+      this.beginTime = begin;
+      this.state = 1;
+      this.endTime = pv(params.end, 0);
+      this.attackStart = this.val;
+    }
+    const susTime = this.endTime - this.beginTime;
+    for (let i = 0; i < out.length; i++) {
+      const attack = pv(params.attack, i);
+      const decay = pv(params.decay, i);
+      const sustain = pv(params.sustain, i);
+      const release = pv(params.release, i);
+      const aCurve = pv(params.attackCurve, i);
+      const dCurve = pv(params.decayCurve, i);
+      const rCurve = pv(params.releaseCurve, i);
+      const peak = pv(params.peak, i);
+      const states = [
+        { time: Number.POSITIVE_INFINITY, start: 0, target: 0 }, // idle
+        { time: attack, start: this.attackStart, target: 1, curve: aCurve },
+        { time: attack + decay, start: 1, target: sustain, curve: dCurve },
+        { time: susTime, start: sustain, target: sustain },
+        { time: susTime + release, start: sustain, target: 0, curve: rCurve },
+      ];
+      let { time, start, target, curve } = states[this.state];
+      this._advance(start, target, time, curve);
+      while (currentTime - this.beginTime >= time) {
+        this.state = (this.state + 1) % states.length;
+        time = states[this.state].time;
+      }
+      out[i] = this.val * peak;
+    }
+    return true;
+  }
+}
+
+registerProcessor('envelope-processor', EnvelopeProcessor);
+
 export const WarpMode = Object.freeze({
   NONE: 0,
   ASYM: 1,
@@ -1056,7 +1126,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
       { name: 'position', defaultValue: 0, min: 0, max: 1 },
       { name: 'warp', defaultValue: 0, min: 0, max: 1 },
       { name: 'warpMode', defaultValue: 0 },
-      { name: 'voices', defaultValue: 1, min: 1 },
+      { name: 'voices', defaultValue: 1, min: 1, automationRate: 'k-rate' },
       { name: 'panspread', defaultValue: 0.7, min: 0, max: 1 },
       { name: 'phaserand', defaultValue: 0, min: 0, max: 1 },
     ];
@@ -1067,7 +1137,6 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
     this.frameLen = 0;
     this.numFrames = 0;
     this.phase = [];
-    this.invSR = 1 / sampleRate;
 
     this.port.onmessage = (e) => {
       const { type, payload } = e.data || {};
@@ -1104,7 +1173,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
 
   _toBits(amt, min = 2, max = 12) {
     const b = max + (min - max) * amt;
-    return { b, n: Math.round(Math.pow(2, b)) };
+    return { b, n: fround(Math.pow(2, b)) };
   }
 
   _warpPhase(phase, amt, mode) {
@@ -1130,7 +1199,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
         return amt < 0.5 ? this._warpPhase(phase, 1 - 2 * amt, 3) : this._warpPhase(phase, 2 * amt - 1, 2);
       }
       case WarpMode.SYNC: {
-        const syncRatio = Math.pow(16, amt * amt);
+        const syncRatio = Math.pow(16, amt ** 2);
         return (phase * syncRatio) % 1;
       }
       case WarpMode.QUANT: {
@@ -1139,8 +1208,8 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
       }
       case WarpMode.FOLD: {
         const K = 7;
-        const k = 1 + Math.max(1, Math.round(K * amt));
-        return Math.abs(frac(k * phase) - 0.5) * 2;
+        const k = 1 + Math.max(1, fround(K * amt));
+        return Math.abs(ffrac(k * phase) - 0.5) * 2;
       }
       case WarpMode.PWM: {
         const w = clamp(0.5 + 0.49 * (2 * amt - 1), 0, 1);
@@ -1150,12 +1219,12 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
       case WarpMode.ORBIT: {
         const depth = 0.5 * amt;
         const n = 3;
-        return frac(phase + depth * Math.sin(2 * Math.PI * n * phase));
+        return frac(phase + depth * Math.sin(TWO_PI * n * phase));
       }
       case WarpMode.SPIN: {
         const depth = 0.5 * amt;
         const { n } = this._toBits(amt, 1, 6);
-        return frac(phase + depth * Math.sin(2 * Math.PI * n * phase));
+        return frac(phase + depth * Math.sin(TWO_PI * n * phase));
       }
       case WarpMode.CHAOS: {
         const r = 3.7 + 0.3 * amt;
@@ -1166,7 +1235,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
         const isPrime = (n) => {
           if (n < 2) return false;
           if (n % 2 === 0) return n === 2;
-          for (let d = 3; d * d <= n; d += 2) if (n % d === 0) return false;
+          for (let d = 3; d ** 2 <= n; d += 2) if (n % d === 0) return false;
           return true;
         };
         let { n } = this._toBits(amt, 3);
@@ -1175,18 +1244,12 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
       }
       case WarpMode.BINARY: {
         let { b } = this._toBits(amt, 3);
-        b = Math.round(b);
+        b = fround(b);
         const n = 1 << b;
         const idx = ffloor(phase * n);
         const ridx = bitReverse(idx, b);
         return ridx / n;
       }
-      case WarpMode.MODULAR: {
-        const { n } = this._toBits(amt);
-        const depth = 0.5 * amt;
-        const jump = frac(phase * n) / n;
-        return frac(phase + depth * jump);
-      }
       case WarpMode.BROWNIAN: {
         const disp = 0.25 * amt * brownian(64 * phase, 4);
         return frac(phase + disp);
@@ -1209,7 +1272,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
       case WarpMode.LOGISTIC: {
         let x = phase;
         const r = 3.6 + 0.4 * amt;
-        const iters = 1 + Math.round(2 * amt);
+        const iters = 1 + fround(2 * amt);
         for (let i = 0; i < iters; i++) x = r * x * (1 - x);
         return clamp(x, 0, 1);
       }
@@ -1222,7 +1285,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
         return (y - y0) / (y1 - y0);
       }
       case WarpMode.FRACTAL: {
-        const d = 0.5 * Math.sin(2 * Math.PI * phase) * amt;
+        const d = 0.5 * Math.sin(TWO_PI * phase) * amt;
         return frac(phase + d);
       }
       case WarpMode.FLIP: {
@@ -1269,16 +1332,16 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
       if (outR !== outL) outR.set(outL);
       return true;
     }
+    const voices = parameters.voices[0]; // k-rate
     for (let i = 0; i < outL.length; i++) {
       const detune = pv(parameters.detune, i);
       const freqspread = pv(parameters.freqspread, i);
       const tablePos = clamp(pv(parameters.position, i), 0, 1);
       const idx = tablePos * (this.numFrames - 1);
       const fIdx = idx | 0;
-      const frac = idx - fIdx;
+      const interpT = idx - fIdx;
       const warpAmount = clamp(pv(parameters.warp, i), 0, 1);
       const warpMode = pv(parameters.warpMode, i);
-      const voices = pv(parameters.voices, i);
       const phaseRand = clamp(pv(parameters.phaserand, i), 0, 1);
       const panspread = voices > 1 ? clamp(pv(parameters.panspread, i), 0, 1) : 0;
       const gain1 = Math.sqrt(0.5 - 0.5 * panspread);
@@ -1286,6 +1349,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
       let f = pv(parameters.frequency, i);
       f = applySemitoneDetuneToFrequency(f, detune / 100); // overall detune
       const normalizer = 1 / Math.sqrt(voices);
+      const detuner = getDetuner(voices, freqspread);
       for (let n = 0; n < voices; n++) {
         const isOdd = (n & 1) == 1;
         let gainL = gain1;
@@ -1295,8 +1359,8 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
           gainL = gain2;
           gainR = gain1;
         }
-        const fVoice = applySemitoneDetuneToFrequency(f, getUnisonDetune(voices, freqspread, n)); // voice detune
-        const dPhase = fVoice * this.invSR;
+        const fVoice = applySemitoneDetuneToFrequency(f, detuner(n)); // voice detune
+        const dPhase = fVoice * INVSR;
         const level = this._chooseMip(dPhase);
         const table = this.tables[level];
 
@@ -1305,13 +1369,13 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
         const ph = this._warpPhase(this.phase[n], warpAmount, warpMode);
         const s0 = this._sampleFrame(table[fIdx], ph);
         const s1 = this._sampleFrame(table[Math.min(this.numFrames - 1, fIdx + 1)], ph);
-        let s = s0 + (s1 - s0) * frac;
+        let s = lerp(s0, s1, interpT);
         if (warpMode === WarpMode.FLIP && this.phase[n] < warpAmount) {
           s = -s;
         }
         outL[i] += s * gainL * normalizer;
         outR[i] += s * gainR * normalizer;
-        this.phase[n] = wrapPhase(this.phase[n] + dPhase);
+        this.phase[n] = frac(this.phase[n] + dPhase);
       }
     }
     return true;

test/__snapshots__/examples.test.mjs.snap

@@ -1391,6 +1391,75 @@ exports[`runs examples > example "bpdecay" example index 0 1`] = `
 ]
 `;
 
+exports[`runs examples > example "bpdepthfrequency" example index 0 1`] = `
+[
+  "[ 0/1 → 1/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 1/16 → 1/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 1/8 → 3/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 3/16 → 1/4 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 1/4 → 5/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 5/16 → 3/8 | note:c4 s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 3/8 → 7/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 7/16 → 1/2 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 1/2 → 9/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 9/16 → 5/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 5/8 → 11/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 11/16 → 3/4 | note:c4 s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 3/4 → 13/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 13/16 → 7/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 7/8 → 15/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 15/16 → 1/1 | note:c s:sawtooth cutoff:600 bpdepthfrequency:200 ]",
+  "[ 1/1 → 17/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 17/16 → 9/8 | note:c4 s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 9/8 → 19/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 19/16 → 5/4 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 5/4 → 21/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 21/16 → 11/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 11/8 → 23/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 23/16 → 3/2 | note:c4 s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 3/2 → 25/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 25/16 → 13/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 13/8 → 27/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 27/16 → 7/4 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 7/4 → 29/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 29/16 → 15/8 | note:c4 s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 15/8 → 31/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 31/16 → 2/1 | note:c s:sawtooth cutoff:600 bpdepthfrequency:500 ]",
+  "[ 2/1 → 33/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 33/16 → 17/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 17/8 → 35/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 35/16 → 9/4 | note:c4 s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 9/4 → 37/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 37/16 → 19/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 19/8 → 39/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 39/16 → 5/2 | note:c s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 5/2 → 41/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 41/16 → 21/8 | note:c4 s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 21/8 → 43/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 43/16 → 11/4 | note:c s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 11/4 → 45/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 45/16 → 23/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 23/8 → 47/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 47/16 → 3/1 | note:c4 s:sawtooth cutoff:600 bpdepthfrequency:100 ]",
+  "[ 3/1 → 49/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 49/16 → 25/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 25/8 → 51/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 51/16 → 13/4 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 13/4 → 53/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 53/16 → 27/8 | note:c4 s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 27/8 → 55/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 55/16 → 7/2 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 7/2 → 57/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 57/16 → 29/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 29/8 → 59/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 59/16 → 15/4 | note:c4 s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 15/4 → 61/16 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 61/16 → 31/8 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 31/8 → 63/16 | note:c# s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+  "[ 63/16 → 4/1 | note:c s:sawtooth cutoff:600 bpdepthfrequency:0 ]",
+]
+`;
+
 exports[`runs examples > example "bpenv" example index 0 1`] = `
 [
   "[ 0/1 → 1/4 | note:c2 s:sawtooth bandf:500 bpattack:0.5 bpenv:4 ]",
@@ -4786,6 +4855,75 @@ exports[`runs examples > example "hpdecay" example index 0 1`] = `
 ]
 `;
 
+exports[`runs examples > example "hpdepthfrequency" example index 0 1`] = `
+[
+  "[ 0/1 → 1/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 1/16 → 1/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 1/8 → 3/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 3/16 → 1/4 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 1/4 → 5/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 5/16 → 3/8 | note:c4 s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 3/8 → 7/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 7/16 → 1/2 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 1/2 → 9/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 9/16 → 5/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 5/8 → 11/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 11/16 → 3/4 | note:c4 s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 3/4 → 13/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 13/16 → 7/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 7/8 → 15/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 15/16 → 1/1 | note:c s:sawtooth cutoff:600 hpdepthfrequency:200 ]",
+  "[ 1/1 → 17/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 17/16 → 9/8 | note:c4 s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 9/8 → 19/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 19/16 → 5/4 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 5/4 → 21/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 21/16 → 11/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 11/8 → 23/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 23/16 → 3/2 | note:c4 s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 3/2 → 25/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 25/16 → 13/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 13/8 → 27/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 27/16 → 7/4 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 7/4 → 29/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 29/16 → 15/8 | note:c4 s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 15/8 → 31/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 31/16 → 2/1 | note:c s:sawtooth cutoff:600 hpdepthfrequency:500 ]",
+  "[ 2/1 → 33/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 33/16 → 17/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 17/8 → 35/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 35/16 → 9/4 | note:c4 s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 9/4 → 37/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 37/16 → 19/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 19/8 → 39/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 39/16 → 5/2 | note:c s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 5/2 → 41/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 41/16 → 21/8 | note:c4 s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 21/8 → 43/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 43/16 → 11/4 | note:c s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 11/4 → 45/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 45/16 → 23/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 23/8 → 47/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 47/16 → 3/1 | note:c4 s:sawtooth cutoff:600 hpdepthfrequency:100 ]",
+  "[ 3/1 → 49/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 49/16 → 25/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 25/8 → 51/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 51/16 → 13/4 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 13/4 → 53/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 53/16 → 27/8 | note:c4 s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 27/8 → 55/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 55/16 → 7/2 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 7/2 → 57/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 57/16 → 29/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 29/8 → 59/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 59/16 → 15/4 | note:c4 s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 15/4 → 61/16 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 61/16 → 31/8 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 31/8 → 63/16 | note:c# s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+  "[ 63/16 → 4/1 | note:c s:sawtooth cutoff:600 hpdepthfrequency:0 ]",
+]
+`;
+
 exports[`runs examples > example "hpenv" example index 0 1`] = `
 [
   "[ 0/1 → 1/4 | note:c2 s:sawtooth hcutoff:500 hpattack:0.5 hpenv:4 ]",
@@ -5969,6 +6107,144 @@ exports[`runs examples > example "lpdecay" example index 0 1`] = `
 ]
 `;
 
+exports[`runs examples > example "lpdepth" example index 0 1`] = `
+[
+  "[ 0/1 → 1/16 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 1/16 → 1/8 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 1/8 → 3/16 | note:c# s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 3/16 → 1/4 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 1/4 → 5/16 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 5/16 → 3/8 | note:c4 s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 3/8 → 7/16 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 7/16 → 1/2 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 1/2 → 9/16 | note:c# s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 9/16 → 5/8 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 5/8 → 11/16 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 11/16 → 3/4 | note:c4 s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 3/4 → 13/16 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 13/16 → 7/8 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 7/8 → 15/16 | note:c# s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 15/16 → 1/1 | note:c s:sawtooth cutoff:600 lpdepth:1 ]",
+  "[ 1/1 → 17/16 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 17/16 → 9/8 | note:c4 s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 9/8 → 19/16 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 19/16 → 5/4 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 5/4 → 21/16 | note:c# s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 21/16 → 11/8 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 11/8 → 23/16 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 23/16 → 3/2 | note:c4 s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 3/2 → 25/16 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 25/16 → 13/8 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 13/8 → 27/16 | note:c# s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 27/16 → 7/4 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 7/4 → 29/16 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 29/16 → 15/8 | note:c4 s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 15/8 → 31/16 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 31/16 → 2/1 | note:c s:sawtooth cutoff:600 lpdepth:0.5 ]",
+  "[ 2/1 → 33/16 | note:c# s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 33/16 → 17/8 | note:c s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 17/8 → 35/16 | note:c s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 35/16 → 9/4 | note:c4 s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 9/4 → 37/16 | note:c s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 37/16 → 19/8 | note:c s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 19/8 → 39/16 | note:c# s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 39/16 → 5/2 | note:c s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 5/2 → 41/16 | note:c s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 41/16 → 21/8 | note:c4 s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 21/8 → 43/16 | note:c s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 43/16 → 11/4 | note:c s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 11/4 → 45/16 | note:c# s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 45/16 → 23/8 | note:c s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 23/8 → 47/16 | note:c s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 47/16 → 3/1 | note:c4 s:sawtooth cutoff:600 lpdepth:1.8 ]",
+  "[ 3/1 → 49/16 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 49/16 → 25/8 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 25/8 → 51/16 | note:c# s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 51/16 → 13/4 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 13/4 → 53/16 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 53/16 → 27/8 | note:c4 s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 27/8 → 55/16 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 55/16 → 7/2 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 7/2 → 57/16 | note:c# s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 57/16 → 29/8 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 29/8 → 59/16 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 59/16 → 15/4 | note:c4 s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 15/4 → 61/16 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 61/16 → 31/8 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 31/8 → 63/16 | note:c# s:sawtooth cutoff:600 lpdepth:0 ]",
+  "[ 63/16 → 4/1 | note:c s:sawtooth cutoff:600 lpdepth:0 ]",
+]
+`;
+
+exports[`runs examples > example "lpdepthfrequency" example index 0 1`] = `
+[
+  "[ 0/1 → 1/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 1/16 → 1/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 1/8 → 3/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 3/16 → 1/4 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 1/4 → 5/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 5/16 → 3/8 | note:c4 s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 3/8 → 7/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 7/16 → 1/2 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 1/2 → 9/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 9/16 → 5/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 5/8 → 11/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 11/16 → 3/4 | note:c4 s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 3/4 → 13/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 13/16 → 7/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 7/8 → 15/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 15/16 → 1/1 | note:c s:sawtooth cutoff:600 lpdepthfrequency:200 ]",
+  "[ 1/1 → 17/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 17/16 → 9/8 | note:c4 s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 9/8 → 19/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 19/16 → 5/4 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 5/4 → 21/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 21/16 → 11/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 11/8 → 23/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 23/16 → 3/2 | note:c4 s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 3/2 → 25/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 25/16 → 13/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 13/8 → 27/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 27/16 → 7/4 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 7/4 → 29/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 29/16 → 15/8 | note:c4 s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 15/8 → 31/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 31/16 → 2/1 | note:c s:sawtooth cutoff:600 lpdepthfrequency:500 ]",
+  "[ 2/1 → 33/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 33/16 → 17/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 17/8 → 35/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 35/16 → 9/4 | note:c4 s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 9/4 → 37/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 37/16 → 19/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 19/8 → 39/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 39/16 → 5/2 | note:c s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 5/2 → 41/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 41/16 → 21/8 | note:c4 s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 21/8 → 43/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 43/16 → 11/4 | note:c s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 11/4 → 45/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 45/16 → 23/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 23/8 → 47/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 47/16 → 3/1 | note:c4 s:sawtooth cutoff:600 lpdepthfrequency:100 ]",
+  "[ 3/1 → 49/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 49/16 → 25/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 25/8 → 51/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 51/16 → 13/4 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 13/4 → 53/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 53/16 → 27/8 | note:c4 s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 27/8 → 55/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 55/16 → 7/2 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 7/2 → 57/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 57/16 → 29/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 29/8 → 59/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 59/16 → 15/4 | note:c4 s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 15/4 → 61/16 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 61/16 → 31/8 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 31/8 → 63/16 | note:c# s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+  "[ 63/16 → 4/1 | note:c s:sawtooth cutoff:600 lpdepthfrequency:0 ]",
+]
+`;
+
 exports[`runs examples > example "lpenv" example index 0 1`] = `
 [
   "[ 0/1 → 1/4 | note:c2 s:sawtooth cutoff:300 lpattack:0.5 lpenv:4 ]",
@@ -6157,6 +6433,75 @@ exports[`runs examples > example "lpq" example index 0 1`] = `
 ]
 `;
 
+exports[`runs examples > example "lprate" example index 0 1`] = `
+[
+  "[ 0/1 → 1/16 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 1/16 → 1/8 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 1/8 → 3/16 | note:c# s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 3/16 → 1/4 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 1/4 → 5/16 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 5/16 → 3/8 | note:c4 s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 3/8 → 7/16 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 7/16 → 1/2 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 1/2 → 9/16 | note:c# s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 9/16 → 5/8 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 5/8 → 11/16 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 11/16 → 3/4 | note:c4 s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 3/4 → 13/16 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 13/16 → 7/8 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 7/8 → 15/16 | note:c# s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 15/16 → 1/1 | note:c s:sawtooth cutoff:600 lprate:4 ]",
+  "[ 1/1 → 17/16 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 17/16 → 9/8 | note:c4 s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 9/8 → 19/16 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 19/16 → 5/4 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 5/4 → 21/16 | note:c# s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 21/16 → 11/8 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 11/8 → 23/16 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 23/16 → 3/2 | note:c4 s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 3/2 → 25/16 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 25/16 → 13/8 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 13/8 → 27/16 | note:c# s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 27/16 → 7/4 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 7/4 → 29/16 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 29/16 → 15/8 | note:c4 s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 15/8 → 31/16 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 31/16 → 2/1 | note:c s:sawtooth cutoff:600 lprate:8 ]",
+  "[ 2/1 → 33/16 | note:c# s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 33/16 → 17/8 | note:c s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 17/8 → 35/16 | note:c s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 35/16 → 9/4 | note:c4 s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 9/4 → 37/16 | note:c s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 37/16 → 19/8 | note:c s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 19/8 → 39/16 | note:c# s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 39/16 → 5/2 | note:c s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 5/2 → 41/16 | note:c s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 41/16 → 21/8 | note:c4 s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 21/8 → 43/16 | note:c s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 43/16 → 11/4 | note:c s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 11/4 → 45/16 | note:c# s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 45/16 → 23/8 | note:c s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 23/8 → 47/16 | note:c s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 47/16 → 3/1 | note:c4 s:sawtooth cutoff:600 lprate:2 ]",
+  "[ 3/1 → 49/16 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 49/16 → 25/8 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 25/8 → 51/16 | note:c# s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 51/16 → 13/4 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 13/4 → 53/16 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 53/16 → 27/8 | note:c4 s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 27/8 → 55/16 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 55/16 → 7/2 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 7/2 → 57/16 | note:c# s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 57/16 → 29/8 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 29/8 → 59/16 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 59/16 → 15/4 | note:c4 s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 15/4 → 61/16 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 61/16 → 31/8 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 31/8 → 63/16 | note:c# s:sawtooth cutoff:600 lprate:1 ]",
+  "[ 63/16 → 4/1 | note:c s:sawtooth cutoff:600 lprate:1 ]",
+]
+`;
+
 exports[`runs examples > example "lprelease" example index 0 1`] = `
 [
   "[ 0/1 → 1/4 | note:c2 s:sawtooth clip:0.5 cutoff:300 lpenv:4 lprelease:0.5 release:0.5 ]",
@@ -6199,6 +6544,75 @@ exports[`runs examples > example "lpsustain" example index 0 1`] = `
 ]
 `;
 
+exports[`runs examples > example "lpsync" example index 0 1`] = `
+[
+  "[ 0/1 → 1/16 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 1/16 → 1/8 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 1/8 → 3/16 | note:c# s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 3/16 → 1/4 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 1/4 → 5/16 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 5/16 → 3/8 | note:c4 s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 3/8 → 7/16 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 7/16 → 1/2 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 1/2 → 9/16 | note:c# s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 9/16 → 5/8 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 5/8 → 11/16 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 11/16 → 3/4 | note:c4 s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 3/4 → 13/16 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 13/16 → 7/8 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 7/8 → 15/16 | note:c# s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 15/16 → 1/1 | note:c s:sawtooth cutoff:600 lpsync:4 ]",
+  "[ 1/1 → 17/16 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 17/16 → 9/8 | note:c4 s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 9/8 → 19/16 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 19/16 → 5/4 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 5/4 → 21/16 | note:c# s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 21/16 → 11/8 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 11/8 → 23/16 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 23/16 → 3/2 | note:c4 s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 3/2 → 25/16 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 25/16 → 13/8 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 13/8 → 27/16 | note:c# s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 27/16 → 7/4 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 7/4 → 29/16 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 29/16 → 15/8 | note:c4 s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 15/8 → 31/16 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 31/16 → 2/1 | note:c s:sawtooth cutoff:600 lpsync:8 ]",
+  "[ 2/1 → 33/16 | note:c# s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 33/16 → 17/8 | note:c s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 17/8 → 35/16 | note:c s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 35/16 → 9/4 | note:c4 s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 9/4 → 37/16 | note:c s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 37/16 → 19/8 | note:c s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 19/8 → 39/16 | note:c# s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 39/16 → 5/2 | note:c s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 5/2 → 41/16 | note:c s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 41/16 → 21/8 | note:c4 s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 21/8 → 43/16 | note:c s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 43/16 → 11/4 | note:c s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 11/4 → 45/16 | note:c# s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 45/16 → 23/8 | note:c s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 23/8 → 47/16 | note:c s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 47/16 → 3/1 | note:c4 s:sawtooth cutoff:600 lpsync:2 ]",
+  "[ 3/1 → 49/16 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 49/16 → 25/8 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 25/8 → 51/16 | note:c# s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 51/16 → 13/4 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 13/4 → 53/16 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 53/16 → 27/8 | note:c4 s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 27/8 → 55/16 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 55/16 → 7/2 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 7/2 → 57/16 | note:c# s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 57/16 → 29/8 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 29/8 → 59/16 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 59/16 → 15/4 | note:c4 s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 15/4 → 61/16 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 61/16 → 31/8 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 31/8 → 63/16 | note:c# s:sawtooth cutoff:600 lpsync:1 ]",
+  "[ 63/16 → 4/1 | note:c s:sawtooth cutoff:600 lpsync:1 ]",
+]
+`;
+
 exports[`runs examples > example "lrate" example index 0 1`] = `
 [
   "[ 0/1 → 1/1 | n:0 s:supersquare leslie:1 lrate:1 ]",
@@ -6888,18 +7302,18 @@ exports[`runs examples > example "nrpv" example index 0 1`] = `
 
 exports[`runs examples > example "octave" example index 0 1`] = `
 [
-  "[ 0/1 → 1/1 | n:0 s:supersquare octave:3 ]",
-  "[ 0/1 → 1/1 | n:4 s:supersquare octave:3 ]",
-  "[ 0/1 → 1/1 | n:7 s:supersquare octave:3 ]",
-  "[ 1/1 → 2/1 | n:0 s:supersquare octave:4 ]",
-  "[ 1/1 → 2/1 | n:4 s:supersquare octave:4 ]",
-  "[ 1/1 → 2/1 | n:7 s:supersquare octave:4 ]",
-  "[ 2/1 → 3/1 | n:0 s:supersquare octave:5 ]",
-  "[ 2/1 → 3/1 | n:4 s:supersquare octave:5 ]",
-  "[ 2/1 → 3/1 | n:7 s:supersquare octave:5 ]",
-  "[ 3/1 → 4/1 | n:0 s:supersquare octave:6 ]",
-  "[ 3/1 → 4/1 | n:4 s:supersquare octave:6 ]",
-  "[ 3/1 → 4/1 | n:7 s:supersquare octave:6 ]",
+  "[ 0/1 → 1/1 | note:F3 s:supersaw octave:0 ]",
+  "[ 0/1 → 1/1 | note:C4 s:supersaw octave:0 ]",
+  "[ 0/1 → 1/1 | note:F4 s:supersaw octave:0 ]",
+  "[ 1/1 → 2/1 | note:F3 s:supersaw octave:1 ]",
+  "[ 1/1 → 2/1 | note:C4 s:supersaw octave:1 ]",
+  "[ 1/1 → 2/1 | note:F4 s:supersaw octave:1 ]",
+  "[ 2/1 → 3/1 | note:F3 s:supersaw octave:2 ]",
+  "[ 2/1 → 3/1 | note:C4 s:supersaw octave:2 ]",
+  "[ 2/1 → 3/1 | note:F4 s:supersaw octave:2 ]",
+  "[ 3/1 → 4/1 | note:F3 s:supersaw octave:3 ]",
+  "[ 3/1 → 4/1 | note:C4 s:supersaw octave:3 ]",
+  "[ 3/1 → 4/1 | note:F4 s:supersaw octave:3 ]",
 ]
 `;
 
@@ -7219,6 +7633,112 @@ exports[`runs examples > example "panchor" example index 0 1`] = `
 ]
 `;
 
+exports[`runs examples > example "partials" example index 0 1`] = `
+[
+  "[ 0/1 → 1/16 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
+  "[ 1/16 → 1/8 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
+  "[ 1/8 → 3/16 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
+  "[ 3/16 → 1/4 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
+  "[ 1/4 → 5/16 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
+  "[ 5/16 → 3/8 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
+  "[ 3/8 → 7/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
+  "[ 7/16 → 1/2 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
+  "[ 1/2 → 9/16 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
+  "[ 9/16 → 5/8 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
+  "[ 5/8 → 11/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
+  "[ 11/16 → 3/4 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
+  "[ 3/4 → 13/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
+  "[ 13/16 → 7/8 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
+  "[ 7/8 → 15/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
+  "[ 15/16 → 1/1 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
+  "[ 1/1 → 17/16 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
+  "[ 17/16 → 9/8 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
+  "[ 9/8 → 19/16 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
+  "[ 19/16 → 5/4 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
+  "[ 5/4 → 21/16 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
+  "[ 21/16 → 11/8 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
+  "[ 11/8 → 23/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
+  "[ 23/16 → 3/2 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
+  "[ 3/2 → 25/16 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
+  "[ 25/16 → 13/8 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
+  "[ 13/8 → 27/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
+  "[ 27/16 → 7/4 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
+  "[ 7/4 → 29/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
+  "[ 29/16 → 15/8 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
+  "[ 15/8 → 31/16 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
+  "[ 31/16 → 2/1 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
+  "[ 2/1 → 33/16 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
+  "[ 33/16 → 17/8 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
+  "[ 17/8 → 35/16 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
+  "[ 35/16 → 9/4 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
+  "[ 9/4 → 37/16 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
+  "[ 37/16 → 19/8 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
+  "[ 19/8 → 39/16 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
+  "[ 39/16 → 5/2 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
+  "[ 5/2 → 41/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
+  "[ 41/16 → 21/8 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
+  "[ 21/8 → 43/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
+  "[ 43/16 → 11/4 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
+  "[ 11/4 → 45/16 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
+  "[ 45/16 → 23/8 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
+  "[ 23/8 → 47/16 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
+  "[ 47/16 → 3/1 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
+  "[ 3/1 → 49/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
+  "[ 49/16 → 25/8 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
+  "[ 25/8 → 51/16 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
+  "[ 51/16 → 13/4 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
+  "[ 13/4 → 53/16 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
+  "[ 53/16 → 27/8 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
+  "[ 27/8 → 55/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
+  "[ 55/16 → 7/2 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
+  "[ 7/2 → 57/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
+  "[ 57/16 → 29/8 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
+  "[ 29/8 → 59/16 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
+  "[ 59/16 → 15/4 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
+  "[ 15/4 → 61/16 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
+  "[ 61/16 → 31/8 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
+  "[ 31/8 → 63/16 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
+  "[ 63/16 → 4/1 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
+]
+`;
+
+exports[`runs examples > example "partials" example index 1 1`] = `
+[
+  "[ 0/1 → 1/8 | s:saw note:G#3 partials:[1] ]",
+  "[ 1/8 → 1/4 | s:saw note:A#4 partials:[1 0 1 1 0 0 0 0] ]",
+  "[ 1/4 → 3/8 | s:saw note:D#4 partials:[1 0 1 1 1 1 1] ]",
+  "[ 3/8 → 1/2 | s:saw note:D#4 partials:[1 1 0 0 1 1 1] ]",
+  "[ 1/2 → 5/8 | s:saw note:C#4 partials:[1 0 0 0 0 1 1] ]",
+  "[ 5/8 → 3/4 | s:saw note:A#3 partials:[1 0 0 0 1 1] ]",
+  "[ 3/4 → 7/8 | s:saw note:B3 partials:[1 1 0 0 1 1] ]",
+  "[ 7/8 → 1/1 | s:saw note:D#4 partials:[1 1 0 0 1 1 0] ]",
+  "[ 1/1 → 9/8 | s:saw note:F#4 partials:[1 0 0 0 0 1 1 0] ]",
+  "[ 9/8 → 5/4 | s:saw note:A#4 partials:[1 0 1 0 1 1 0 1] ]",
+  "[ 5/4 → 11/8 | s:saw note:A#4 partials:[1 0 1 1 1 0 1 1] ]",
+  "[ 11/8 → 3/2 | s:saw note:B3 partials:[1 0 1 1 1 1] ]",
+  "[ 3/2 → 13/8 | s:saw note:G#4 partials:[1 0 0 1 1 1 0 0] ]",
+  "[ 13/8 → 7/4 | s:saw note:E4 partials:[1 0 0 0 0 0 0 0] ]",
+  "[ 7/4 → 15/8 | s:saw note:B3 partials:[1 1 0 1 0 1] ]",
+  "[ 15/8 → 2/1 | s:saw note:G#4 partials:[1 0 0 1 1 0 0 1] ]",
+  "[ 2/1 → 17/8 | s:saw note:D#5 partials:[1 1 1 1 0 1 1 0] ]",
+  "[ 17/8 → 9/4 | s:saw note:C#5 partials:[1 1 1 0 1 0 0 0] ]",
+  "[ 9/4 → 19/8 | s:saw note:D#4 partials:[1 0 1 1 0 0 1] ]",
+  "[ 19/8 → 5/2 | s:saw note:C#5 partials:[1 1 0 1 0 1 1 1] ]",
+  "[ 5/2 → 21/8 | s:saw note:E4 partials:[1 1 1 0 1 1 0] ]",
+  "[ 21/8 → 11/4 | s:saw note:A#3 partials:[1 0 1 0 1 0] ]",
+  "[ 11/4 → 23/8 | s:saw note:G#4 partials:[1 0 1 0 0 0 1 1] ]",
+  "[ 23/8 → 3/1 | s:saw note:G#3 partials:[1 0 1] ]",
+  "[ 3/1 → 25/8 | s:saw note:B3 partials:[1 1 1 0 0 0] ]",
+  "[ 25/8 → 13/4 | s:saw note:D#4 partials:[1 0 1 1 0 0 0] ]",
+  "[ 13/4 → 27/8 | s:saw note:D#5 partials:[1 1 1 1 1 1 1 1] ]",
+  "[ 27/8 → 7/2 | s:saw note:D#4 partials:[1 1 0 1 0 0 1] ]",
+  "[ 7/2 → 29/8 | s:saw note:D#4 partials:[1 1 0 1 0 0 1] ]",
+  "[ 29/8 → 15/4 | s:saw note:D#5 partials:[1 1 1 1 0 0 0 1] ]",
+  "[ 15/4 → 31/8 | s:saw note:B4 partials:[1 1 0 1 0 0 0 0] ]",
+  "[ 31/8 → 4/1 | s:saw note:A#4 partials:[1 0 1 1 1 1 0 1] ]",
+]
+`;
+
 exports[`runs examples > example "pattack" example index 0 1`] = `
 [
   "[ 0/1 → 1/2 | note:c pattack:0 ]",
@@ -7472,6 +7992,75 @@ exports[`runs examples > example "phasersweep" example index 0 1`] = `
 ]
 `;
 
+exports[`runs examples > example "phases" example index 0 1`] = `
+[
+  "[ 0/1 → 1/8 | s:saw note:G#1 partials:{partials:1} ]",
+  "[ 0/1 → 1/8 | s:saw note:G#1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 1/8 → 1/4 | s:saw note:A#2 partials:{partials:1} ]",
+  "[ 1/8 → 1/4 | s:saw note:A#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 1/4 → 3/8 | s:saw note:D#2 partials:{partials:1} ]",
+  "[ 1/4 → 3/8 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 3/8 → 1/2 | s:saw note:D#2 partials:{partials:1} ]",
+  "[ 3/8 → 1/2 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 1/2 → 5/8 | s:saw note:C#2 partials:{partials:1} ]",
+  "[ 1/2 → 5/8 | s:saw note:C#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 5/8 → 3/4 | s:saw note:A#1 partials:{partials:1} ]",
+  "[ 5/8 → 3/4 | s:saw note:A#1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 3/4 → 7/8 | s:saw note:B1 partials:{partials:1} ]",
+  "[ 3/4 → 7/8 | s:saw note:B1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 7/8 → 1/1 | s:saw note:D#2 partials:{partials:1} ]",
+  "[ 7/8 → 1/1 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 1/1 → 9/8 | s:saw note:F#2 partials:{partials:1} ]",
+  "[ 1/1 → 9/8 | s:saw note:F#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 9/8 → 5/4 | s:saw note:A#2 partials:{partials:1} ]",
+  "[ 9/8 → 5/4 | s:saw note:A#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 5/4 → 11/8 | s:saw note:A#2 partials:{partials:1} ]",
+  "[ 5/4 → 11/8 | s:saw note:A#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 11/8 → 3/2 | s:saw note:B1 partials:{partials:1} ]",
+  "[ 11/8 → 3/2 | s:saw note:B1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 3/2 → 13/8 | s:saw note:G#2 partials:{partials:1} ]",
+  "[ 3/2 → 13/8 | s:saw note:G#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 13/8 → 7/4 | s:saw note:E2 partials:{partials:1} ]",
+  "[ 13/8 → 7/4 | s:saw note:E2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 7/4 → 15/8 | s:saw note:B1 partials:{partials:1} ]",
+  "[ 7/4 → 15/8 | s:saw note:B1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 15/8 → 2/1 | s:saw note:G#2 partials:{partials:1} ]",
+  "[ 15/8 → 2/1 | s:saw note:G#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 2/1 → 17/8 | s:saw note:D#3 partials:{partials:1} ]",
+  "[ 2/1 → 17/8 | s:saw note:D#3 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 17/8 → 9/4 | s:saw note:C#3 partials:{partials:1} ]",
+  "[ 17/8 → 9/4 | s:saw note:C#3 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 9/4 → 19/8 | s:saw note:D#2 partials:{partials:1} ]",
+  "[ 9/4 → 19/8 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 19/8 → 5/2 | s:saw note:C#3 partials:{partials:1} ]",
+  "[ 19/8 → 5/2 | s:saw note:C#3 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 5/2 → 21/8 | s:saw note:E2 partials:{partials:1} ]",
+  "[ 5/2 → 21/8 | s:saw note:E2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 21/8 → 11/4 | s:saw note:A#1 partials:{partials:1} ]",
+  "[ 21/8 → 11/4 | s:saw note:A#1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 11/4 → 23/8 | s:saw note:G#2 partials:{partials:1} ]",
+  "[ 11/4 → 23/8 | s:saw note:G#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 23/8 → 3/1 | s:saw note:G#1 partials:{partials:1} ]",
+  "[ 23/8 → 3/1 | s:saw note:G#1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 3/1 → 25/8 | s:saw note:B1 partials:{partials:1} ]",
+  "[ 3/1 → 25/8 | s:saw note:B1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 25/8 → 13/4 | s:saw note:D#2 partials:{partials:1} ]",
+  "[ 25/8 → 13/4 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 13/4 → 27/8 | s:saw note:D#3 partials:{partials:1} ]",
+  "[ 13/4 → 27/8 | s:saw note:D#3 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 27/8 → 7/2 | s:saw note:D#2 partials:{partials:1} ]",
+  "[ 27/8 → 7/2 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 7/2 → 29/8 | s:saw note:D#2 partials:{partials:1} ]",
+  "[ 7/2 → 29/8 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 29/8 → 15/4 | s:saw note:D#3 partials:{partials:1} ]",
+  "[ 29/8 → 15/4 | s:saw note:D#3 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 15/4 → 31/8 | s:saw note:B2 partials:{partials:1} ]",
+  "[ 15/4 → 31/8 | s:saw note:B2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+  "[ 31/8 → 4/1 | s:saw note:A#2 partials:{partials:1} ]",
+  "[ 31/8 → 4/1 | s:saw note:A#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
+]
+`;
+
 exports[`runs examples > example "pianoroll" example index 0 1`] = `
 [
   "[ 0/1 → 1/8 | note:c2 s:sawtooth lpenv:4 cutoff:300 ]",
@@ -8193,6 +8782,75 @@ exports[`runs examples > example "rand" example index 0 1`] = `
 ]
 `;
 
+exports[`runs examples > example "randL" example index 0 1`] = `
+[
+  "[ 0/1 → 1/16 | s:saw note:F1 partials:[0 0 0 0 0 0 0 0] ]",
+  "[ 1/16 → 1/8 | s:saw note:Bb2 partials:[0.8426077850162983 0.0886186733841896 0.9342893119901419 0.06848422810435295 0.6248505394905806 0.5372848063707352 0.8283301629126072 0.7969411127269268] ]",
+  "[ 1/8 → 3/16 | s:saw note:G2 partials:[0.6852155700325966 0.17723728902637959 0.8521428182721138 0.5022399611771107 0.9780306946486235 0.3186125475913286 0.1851645242422819 0.8495976086705923] ]",
+  "[ 3/16 → 1/4 | s:saw note:Ab1 partials:[0.20066574029624462 0.17195586115121841 0.2159541044384241 0.17005567252635956 0.6841662060469389 0.07906394638121128 0.004815371707081795 0.027107616886496544] ]",
+  "[ 1/4 → 5/16 | s:saw note:C2 partials:[0.36975969187915325 0.18273563869297504 0.012781793251633644 0.5423613861203194 0.12467948533594608 0.7188410349190235 0.856887087225914 0.8818203993141651] ]",
+  "[ 5/16 → 3/8 | s:saw note:Eb2 partials:[0.5675661638379097 0.15932588279247284 0.31376867927610874 0.32359412126243114 0.3281281068921089 0.011714376509189606 0.4433113746345043 0.68459103256464] ]",
+  "[ 3/8 → 7/16 | s:saw note:C2 partials:[0.40139251574873924 0.15799915604293346 0.9604704882949591 0.03873417526483536 0.4157217647880316 0.27756719291210175 0.8800551909953356 0.5692523363977671] ]",
+  "[ 7/16 → 1/2 | s:saw note:Bb1 partials:[0.3015887886285782 0.22311350144445896 0.47645803540945053 0.001545613631606102 0.53841289319098 0.330710094422102 0.2747743520885706 0.9471044968813658] ]",
+  "[ 1/2 → 9/16 | s:saw note:Bb1 partials:[0.2604806162416935 0.3654713351279497 0.9900747090578079 0.22572625242173672 0.9328999016433954 0.5273839123547077 0.7047769222408533 0.7311522178351879] ]",
+  "[ 9/16 → 5/8 | s:saw note:G1 partials:[0.16399178467690945 0.9559339117258787 0.21830322034657001 0.4903192054480314 0.2504696864634752 0.7302105724811554 0.6580934692174196 0.9855979979038239] ]",
+  "[ 5/8 → 11/16 | s:saw note:G1 partials:[0.1356358677148819 0.5403102282434702 0.07321739941835403 0.9646544624119997 0.7707359045743942 0.46888123638927937 0.9489036612212658 0.366748945787549] ]",
+  "[ 11/16 → 3/4 | s:saw note:C2 partials:[0.408811716362834 0.9613851886242628 0.7683626655489206 0.5862949229776859 0.9568102769553661 0.7154356613755226 0.6283384170383215 0.2193678840994835] ]",
+  "[ 3/4 → 13/16 | s:saw note:Ab1 partials:[0.19582648016512394 0.0024610888212919235 0.08272589556872845 0.09592138417065144 0.9678201265633106 0.3249557167291641 0.9463537875562906 0.20766610652208328] ]",
+  "[ 13/16 → 7/8 | s:saw note:Ab2 partials:[0.7516226731240749 0.15610851533710957 0.9039078876376152 0.8602268267422915 0.928601048886776 0.4479671400040388 0.5080656576901674 0.562442347407341] ]",
+  "[ 7/8 → 15/16 | s:saw note:C2 partials:[0.3976310808211565 0.13476407527923584 0.963376859202981 0.6579397786408663 0.5203975513577461 0.865439185872674 0.5583905670791864 0.2736878804862499] ]",
+  "[ 15/16 → 1/1 | s:saw note:G2 partials:[0.7029578909277916 0.6351367030292749 0.26143294386565685 0.6411824338138103 0.5676082745194435 0.4803342465311289 0.5140306428074837 0.9477859679609537] ]",
+  "[ 1/1 → 17/16 | s:saw note:Eb2 partials:[0.5195421651005745 0.9349692352116108 0.1718774326145649 0.9601866770535707 0.2802200373262167 0.8732441551983356 0.01810968853533268 0.42737805284559727] ]",
+  "[ 17/16 → 9/8 | s:saw note:Eb2 partials:[0.5486328881233931 0.7088070474565029 0.07877279818058014 0.9422610364854336 0.7696988433599472 0.8289324026554823 0.5925844628363848 0.3920764606446028] ]",
+  "[ 9/8 → 19/16 | s:saw note:G2 partials:[0.6724895145744085 0.21410975232720375 0.5229047331959009 0.20957534946501255 0.7402758821845055 0.2681974694132805 0.4059371296316385 0.9422509074211121] ]",
+  "[ 19/16 → 5/4 | s:saw note:F1 partials:[0.08174665085971355 0.2762963864952326 0.5428560189902782 0.29452037811279297 0.17946280725300312 0.366960596293211 0.26327736489474773 0.5002023074775934] ]",
+  "[ 5/4 → 21/16 | s:saw note:G2 partials:[0.7287282031029463 0.9341024849563837 0.5098182689398527 0.5608645845204592 0.6812942810356617 0.5015129633247852 0.4602120481431484 0.927369873970747] ]",
+  "[ 21/16 → 11/8 | s:saw note:F1 partials:[0.08104278706014156 0.5200720727443695 0.5363391060382128 0.9824271816760302 0.10652091167867184 0.23473932035267353 0.7656102329492569 0.4850195776671171] ]",
+  "[ 11/8 → 23/16 | s:saw note:Ab1 partials:[0.18280375190079212 0.40527783520519733 0.30504362285137177 0.7622128054499626 0.842598931863904 0.053796686232089996 0.5124214049428701 0.9178454764187336] ]",
+  "[ 23/16 → 3/2 | s:saw note:Eb2 partials:[0.5081270858645439 0.1421387754380703 0.8852288406342268 0.9066353775560856 0.7700740322470665 0.35437702015042305 0.20032598450779915 0.963155921548605] ]",
+  "[ 3/2 → 25/16 | s:saw note:F2 partials:[0.6084080748260021 0.4424846563488245 0.755185678601265 0.04328125901520252 0.04244415462017059 0.3994515985250473 0.787989066913724 0.3180440980941057] ]",
+  "[ 25/16 → 13/8 | s:saw note:Ab1 partials:[0.17092766426503658 0.7808954659849405 0.8234915658831596 0.8643151633441448 0.9781719036400318 0.5102015696465969 0.018259897828102112 0.25844234600663185] ]",
+  "[ 13/8 → 27/16 | s:saw note:Db2 partials:[0.49675471149384975 0.2965749856084585 0.09848833456635475 0.19172007404267788 0.22677889838814735 0.9841996673494577 0.11156083643436432 0.6079028844833374] ]",
+  "[ 27/16 → 7/4 | s:saw note:Bb1 partials:[0.29589061066508293 0.13011129200458527 0.8021425940096378 0.38040103763341904 0.33274981752038 0.29745868407189846 0.9898250997066498 0.743482418358326] ]",
+  "[ 7/4 → 29/16 | s:saw note:Ab1 partials:[0.20473789609968662 0.7480021081864834 0.30757393687963486 0.5827204789966345 0.22094514779746532 0.6370698790997267 0.16573002003133297 0.0638319905847311] ]",
+  "[ 29/16 → 15/8 | s:saw note:Db2 partials:[0.4695742893964052 0.6690364442765713 0.6216684486716986 0.41342394426465034 0.9508822970092297 0.8403679896146059 0.91759910620749 0.6591395419090986] ]",
+  "[ 15/8 → 31/16 | s:saw note:F2 partials:[0.5945571791380644 0.3962489552795887 0.563431927934289 0.4742323160171509 0.4185752831399441 0.9703940469771624 0.5282467231154442 0.6896266285330057] ]",
+  "[ 31/16 → 2/1 | s:saw note:Bb2 partials:[0.8672592639923096 0.3438429981470108 0.9795673936605453 0.46547594852745533 0.9770395755767822 0.36851615831255913 0.7725539114326239 0.876962523907423] ]",
+  "[ 2/1 → 33/16 | s:saw note:C3 partials:[0.9595271199941635 0.5427457969635725 0.45864437520504 0.8057199101895094 0.18388565629720688 0.17221237532794476 0.8838487900793552 0.4976818822324276] ]",
+  "[ 33/16 → 17/8 | s:saw note:Bb1 partials:[0.3324784208089113 0.6005446836352348 0.1564352661371231 0.765217661857605 0.12899602390825748 0.20880493707954884 0.9156261626631021 0.5550615340471268] ]",
+  "[ 17/8 → 35/16 | s:saw note:Bb2 partials:[0.9033902939409018 0.22919894196093082 0.8388008493930101 0.9108077362179756 0.32246968522667885 0.16122018359601498 0.31932324543595314 0.18524732999503613] ]",
+  "[ 35/16 → 9/4 | s:saw note:F1 partials:[0.037000780925154686 0.30360451713204384 0.7516817897558212 0.17065968923270702 0.24669718369841576 0.978821286931634 0.9620356522500515 0.12417634017765522] ]",
+  "[ 9/4 → 37/16 | s:saw note:C2 partials:[0.34548251144587994 0.30419893004000187 0.10205957666039467 0.9906709585338831 0.3156223688274622 0.3745057098567486 0.7668170686811209 0.9379972033202648] ]",
+  "[ 37/16 → 19/8 | s:saw note:F2 partials:[0.6649543270468712 0.41613837145268917 0.9078915324062109 0.2232209537178278 0.2918607946485281 0.4931973237544298 0.7035325299948454 0.29280414804816246] ]",
+  "[ 19/8 → 39/16 | s:saw note:Bb2 partials:[0.8365066405385733 0.5369812995195389 0.2263860274106264 0.21759207546710968 0.2172116208821535 0.09454222768545151 0.8075542915612459 0.9017798062413931] ]",
+  "[ 39/16 → 5/2 | s:saw note:G1 partials:[0.14231421053409576 0.6801821701228619 0.7958894111216068 0.9494249671697617 0.179213372990489 0.22531690262258053 0.7458387855440378 0.3595987129956484] ]",
+  "[ 5/2 → 41/16 | s:saw note:Db2 partials:[0.45861607417464256 0.6807645913213491 0.07009582966566086 0.1450389064848423 0.2579921595752239 0.612881500273943 0.5503941811621189 0.7027011960744858] ]",
+  "[ 41/16 → 21/8 | s:saw note:F2 partials:[0.6068673655390739 0.8489279896020889 0.027898555621504784 0.90520747192204 0.18605150654911995 0.30939464271068573 0.16843407973647118 0.5127317048609257] ]",
+  "[ 21/8 → 43/16 | s:saw note:G1 partials:[0.16019348427653313 0.47758268006145954 0.9749126061797142 0.8025561925023794 0.3600110989063978 0.324309878051281 0.5655391272157431 0.13364790193736553] ]",
+  "[ 43/16 → 11/4 | s:saw note:Eb2 partials:[0.538035349920392 0.4103843830525875 0.6443832442164421 0.7532152868807316 0.32128027081489563 0.29064710810780525 0.5972099266946316 0.8252892810851336] ]",
+  "[ 11/4 → 45/16 | s:saw note:F2 partials:[0.6332327704876661 0.7342763151973486 0.16935866326093674 0.4754706546664238 0.528122790157795 0.21934260986745358 0.7476693484932184 0.2995396424084902] ]",
+  "[ 45/16 → 23/8 | s:saw note:Bb2 partials:[0.8912940509617329 0.5256196465343237 0.25639201514422894 0.46860250271856785 0.08611978217959404 0.6175916157662868 0.990638293325901 0.11189854890108109] ]",
+  "[ 23/8 → 47/16 | s:saw note:F1 partials:[0.01625417172908783 0.28409438766539097 0.3075305689126253 0.40343056432902813 0.5556836389005184 0.6926821582019329 0.5635769125074148 0.017873913049697876] ]",
+  "[ 47/16 → 3/1 | s:saw note:Bb1 partials:[0.2830589488148689 0.3613663297146559 0.6216250211000443 0.6083405166864395 0.27202711440622807 0.771099541336298 0.3156145606189966 0.736228458583355] ]",
+  "[ 3/1 → 49/16 | s:saw note:Ab1 partials:[0.21728911064565182 0.7605195846408606 0.11240843310952187 0.4372697602957487 0.15630115941166878 0.1653979979455471 0.5303416550159454 0.07218753732740879] ]",
+  "[ 49/16 → 25/8 | s:saw note:F1 partials:[0.012518879026174545 0.6565517522394657 0.783835593611002 0.2481316588819027 0.27786846831440926 0.6153149046003819 0.39914070069789886 0.2175555843859911] ]",
+  "[ 25/8 → 51/16 | s:saw note:C2 partials:[0.34324387833476067 0.14098095521330833 0.012934491038322449 0.827436288818717 0.5283997394144535 0.8942463714629412 0.4924008697271347 0.9298017006367445] ]",
+  "[ 51/16 → 13/4 | s:saw note:Bb2 partials:[0.9057559575885534 0.5731389932334423 0.06561482697725296 0.02156665176153183 0.4685337021946907 0.000788738951086998 0.6995994579046965 0.9893404543399811] ]",
+  "[ 13/4 → 53/16 | s:saw note:C3 partials:[0.9923650715500116 0.7797339502722025 0.1992435697466135 0.9005183521658182 0.718992218375206 0.23745290748775005 0.28872333094477654 0.35448253713548183] ]",
+  "[ 53/16 → 27/8 | s:saw note:Bb1 partials:[0.3235324025154114 0.5165992900729179 0.6231792941689491 0.8034896682947874 0.6663950439542532 0.4207208137959242 0.9748435858637094 0.27676148526370525] ]",
+  "[ 27/8 → 55/16 | s:saw note:C2 partials:[0.40869180113077164 0.4018078800290823 0.34696186147630215 0.9572948440909386 0.400035472586751 0.3531211093068123 0.7240961641073227 0.8125612027943134] ]",
+  "[ 55/16 → 7/2 | s:saw note:Ab2 partials:[0.775677714496851 0.0502743236720562 0.3246541116386652 0.503994770348072 0.8252716399729252 0.89872563816607 0.060319963842630386 0.25497629307210445] ]",
+  "[ 7/2 → 57/16 | s:saw note:C2 partials:[0.40994881466031075 0.6455810181796551 0.35704658553004265 0.2732649203389883 0.31587288342416286 0.23243548162281513 0.22569947130978107 0.17241661623120308] ]",
+  "[ 57/16 → 29/8 | s:saw note:Ab2 partials:[0.8133465722203255 0.8327706772834063 0.32914630882442 0.23131784796714783 0.7526696771383286 0.1361286472529173 0.11441296897828579 0.36366880126297474] ]",
+  "[ 29/8 → 59/16 | s:saw note:C3 partials:[0.9391485787928104 0.3380728308111429 0.7723016366362572 0.998674126341939 0.7193406894803047 0.6963680125772953 0.9260678570717573 0.7829763628542423] ]",
+  "[ 59/16 → 15/4 | s:saw note:C3 partials:[0.9731374885886908 0.0494034755975008 0.990720022469759 0.9819309785962105 0.22877203114330769 0.7265191469341516 0.4922411348670721 0.7549834884703159] ]",
+  "[ 15/4 → 61/16 | s:saw note:Ab2 partials:[0.8121673222631216 0.25548945367336273 0.5759696904569864 0.6668333616107702 0.9233786761760712 0.11143362522125244 0.9734930321574211 0.369325939565897] ]",
+  "[ 61/16 → 31/8 | s:saw note:G1 partials:[0.1008925698697567 0.7558664139360189 0.1523460578173399 0.6523381881415844 0.9690635204315186 0.7343240566551685 0.9544064309448004 0.9150135722011328] ]",
+  "[ 31/8 → 63/16 | s:saw note:G2 partials:[0.7361665386706591 0.7657648548483849 0.21474426984786987 0.8228576295077801 0.5647660344839096 0.08148551359772682 0.9714624118059874 0.13992334716022015] ]",
+  "[ 63/16 → 4/1 | s:saw note:Bb1 partials:[0.3056422360241413 0.8881660811603069 0.7683485243469477 0.08641545102000237 0.5427133180201054 0.20803124643862247 0.5347504671663046 0.5977730695158243] ]",
+]
+`;
+
 exports[`runs examples > example "range" example index 0 1`] = `
 [
   "[ 0/1 → 1/8 | s:hh cutoff:2250 ]",
@@ -12240,54 +12898,54 @@ exports[`runs examples > example "wchooseCycles" example index 0 1`] = `
 
 exports[`runs examples > example "wchooseCycles" example index 1 1`] = `
 [
-  "[ 0/1 → 1/12 | s:bd ]",
-  "[ 1/12 → 1/6 | s:bd ]",
-  "[ 1/6 → 1/4 | s:bd ]",
-  "[ 1/4 → 1/3 | s:bd ]",
-  "[ 1/3 → 5/12 | s:bd ]",
-  "[ 5/12 → 1/2 | s:bd ]",
-  "[ 1/2 → 7/12 | s:sd ]",
-  "[ 7/12 → 2/3 | s:sd ]",
-  "[ 2/3 → 3/4 | s:sd ]",
-  "[ 3/4 → 5/6 | s:bd ]",
-  "[ 5/6 → 11/12 | s:bd ]",
-  "[ 11/12 → 1/1 | s:bd ]",
-  "[ 1/1 → 13/12 | s:bd ]",
-  "[ 13/12 → 7/6 | s:bd ]",
-  "[ 7/6 → 5/4 | s:bd ]",
-  "[ 5/4 → 4/3 | s:bd ]",
-  "[ 4/3 → 17/12 | s:bd ]",
-  "[ 17/12 → 3/2 | s:bd ]",
-  "[ 3/2 → 19/12 | s:hh ]",
-  "[ 19/12 → 5/3 | s:hh ]",
-  "[ 5/3 → 7/4 | s:hh ]",
-  "[ 7/4 → 11/6 | s:bd ]",
-  "[ 11/6 → 23/12 | s:bd ]",
-  "[ 23/12 → 2/1 | s:bd ]",
-  "[ 2/1 → 25/12 | s:hh ]",
-  "[ 25/12 → 13/6 | s:hh ]",
-  "[ 13/6 → 9/4 | s:hh ]",
-  "[ 9/4 → 7/3 | s:hh ]",
-  "[ 7/3 → 29/12 | s:hh ]",
-  "[ 29/12 → 5/2 | s:hh ]",
-  "[ 5/2 → 31/12 | s:bd ]",
-  "[ 31/12 → 8/3 | s:bd ]",
-  "[ 8/3 → 11/4 | s:bd ]",
-  "[ 11/4 → 17/6 | s:bd ]",
-  "[ 17/6 → 35/12 | s:bd ]",
-  "[ 35/12 → 3/1 | s:bd ]",
-  "[ 3/1 → 37/12 | s:bd ]",
-  "[ 37/12 → 19/6 | s:bd ]",
-  "[ 19/6 → 13/4 | s:bd ]",
-  "[ 13/4 → 10/3 | s:sd ]",
-  "[ 10/3 → 41/12 | s:sd ]",
-  "[ 41/12 → 7/2 | s:sd ]",
-  "[ 7/2 → 43/12 | s:hh ]",
-  "[ 43/12 → 11/3 | s:hh ]",
-  "[ 11/3 → 15/4 | s:hh ]",
-  "[ 15/4 → 23/6 | s:bd ]",
-  "[ 23/6 → 47/12 | s:bd ]",
-  "[ 47/12 → 4/1 | s:bd ]",
+  "[ 0/1 → 1/12 | note:c ]",
+  "[ 1/12 → 1/6 | note:c ]",
+  "[ 1/6 → 1/4 | note:c ]",
+  "[ 1/4 → 1/3 | note:c ]",
+  "[ 1/3 → 5/12 | note:c ]",
+  "[ 5/12 → 1/2 | note:c ]",
+  "[ 1/2 → 7/12 | note:f ]",
+  "[ 7/12 → 2/3 | note:f ]",
+  "[ 2/3 → 3/4 | note:f ]",
+  "[ 3/4 → 5/6 | note:c ]",
+  "[ 5/6 → 11/12 | note:c ]",
+  "[ 11/12 → 1/1 | note:c ]",
+  "[ 1/1 → 13/12 | note:c ]",
+  "[ 13/12 → 7/6 | note:c ]",
+  "[ 7/6 → 5/4 | note:c ]",
+  "[ 5/4 → 4/3 | note:c ]",
+  "[ 4/3 → 17/12 | note:c ]",
+  "[ 17/12 → 3/2 | note:c ]",
+  "[ 3/2 → 19/12 | note:a ]",
+  "[ 19/12 → 5/3 | note:a ]",
+  "[ 5/3 → 7/4 | note:a ]",
+  "[ 7/4 → 11/6 | note:c ]",
+  "[ 11/6 → 23/12 | note:c ]",
+  "[ 23/12 → 2/1 | note:c ]",
+  "[ 2/1 → 25/12 | note:a ]",
+  "[ 25/12 → 13/6 | note:a ]",
+  "[ 13/6 → 9/4 | note:a ]",
+  "[ 9/4 → 7/3 | note:a ]",
+  "[ 7/3 → 29/12 | note:a ]",
+  "[ 29/12 → 5/2 | note:a ]",
+  "[ 5/2 → 31/12 | note:c ]",
+  "[ 31/12 → 8/3 | note:c ]",
+  "[ 8/3 → 11/4 | note:c ]",
+  "[ 11/4 → 17/6 | note:c ]",
+  "[ 17/6 → 35/12 | note:c ]",
+  "[ 35/12 → 3/1 | note:c ]",
+  "[ 3/1 → 37/12 | note:c ]",
+  "[ 37/12 → 19/6 | note:c ]",
+  "[ 19/6 → 13/4 | note:c ]",
+  "[ 13/4 → 10/3 | note:f ]",
+  "[ 10/3 → 41/12 | note:f ]",
+  "[ 41/12 → 7/2 | note:f ]",
+  "[ 7/2 → 43/12 | note:a ]",
+  "[ 43/12 → 11/3 | note:a ]",
+  "[ 11/3 → 15/4 | note:a ]",
+  "[ 15/4 → 23/6 | note:c ]",
+  "[ 23/6 → 47/12 | note:c ]",
+  "[ 47/12 → 4/1 | note:c ]",
 ]
 `;
 

website/src/pages/learn/synths.mdx

@@ -48,28 +48,94 @@ You can also use the `crackle` type to play some subtle noise crackles. You can
 
 ### Additive Synthesis
 
-To tame the harsh sound of the basic waveforms, we can set the `n` control to limit the overtones of the waveform:
+Periodic waveforms are composed of several [harmonics](https://en.wikipedia.org/wiki/Harmonic) above a fundamental frequency, lying at integer multiples. These overtones combine to give a sound its unique timbral quality.
+
+For the basic waveforms, we offer you control over these harmonics with the `partials` and `phases` functions.
+
+#### Partials
+
+`partials` refers to the magnitude of each harmonic relative to the fundamental frequency. They can thus be used to spectrally filter these waveforms and tame some of their harshness:
 
 <MiniRepl
   client:idle
   tune={`note("c2 <eb2 <g2 g1>>".fast(2))
 .sound("sawtooth")
-.n("<32 16 8 4>")
+.partials([1, 1, "<1 0>", "<1 0>", "<1 0>", "<1 0>", "<1 0>"])
 ._scope()`}
 />
 
-When the `n` control is used on a basic waveform, it defines the number of harmonic partials the sound is getting.
-You can also set `n` directly in mini notation with `sound`:
+`partials` can also be used to construct _new_ waveforms not present in our basic set with the 'user' sound source:
 
 <MiniRepl
   client:idle
   tune={`note("c2 <eb2 <g2 g1>>".fast(2))
-.sound("sawtooth:<32 16 8 4>")
+.sound("user")
+.partials([1, 0, 0.3, 0, 0.1, 0, 0, 0.3])
 ._scope()`}
 />
 
-Note for tidal users: `n` in tidal is synonymous to `note` for synths only.
-In strudel, this is not the case, where `n` will always change timbre, be it though different samples or different waveforms.
+We may algorithmically construct lists of magnitudes with Javascript code like:
+
+<MiniRepl
+  client:idle
+  tune={`const numHarmonics = 22;
+note("c2 <eb2 <g2 g1>>".fast(2))
+.sound("saw")
+.partials(new Array(numHarmonics).fill(1))
+._scope()`}
+/>
+
+which acts as a spectral filter. Or:
+
+<MiniRepl
+  client:idle
+  tune={`note("c2 <eb2 <g2 g1>>").fast(2)
+.sound("user")
+.partials(new Array(50).fill(0)
+  .map((_, idx) => ((-1) ** (idx + 1)) / (idx + 1))
+)
+._scope()`}
+/>
+
+which recovers a familiar waveform.
+
+`partials` is also compatible with pattern functions designed to produce lists, like `randL` or `binaryL`:
+
+<MiniRepl
+  client:idle
+  tune={`note("c2 <eb2 <g2 g1>>").fast(2)
+.sound("user")
+.partials(randL(10))
+._scope()`}
+/>
+
+and with lists _of_ patterns:
+
+<MiniRepl
+  client:idle
+  tune={`note("c2 <eb2 <g2 g1>>".fast(4))
+.sound("user")
+.partials([1, 0, "0 1", "0 1 0.3", rand])
+._scope()`}
+/>
+
+Note that the first value in the `partials` array controls the magnitude of the fundamental harmonic rather than the DC offset, which is fixed at 0.
+
+#### Phases
+
+Earlier, we mentioned that periodic waveforms can be broken into a set of harmonics above a fundamental frequency. Each harmonic has two defining properties: its magnitude (how loud it is) and its phase, which determines where in its cycle that sine wave starts when the waveform is built.
+
+These phases too can be declared in Strudel and can give your sounds interesting depth.
+
+<MiniRepl
+  client:idle
+  tune={`s("saw").seg(16).n(irand(12)).scale("F1:minor")
+  .penv(48).panchor(0).pdec(0.05)
+  .delay(0.25).room(0.25)
+  .compressor(-20).vib(0.3)
+  .partials(randL(200))
+  .phases(randL(200))`}
+/>
 
 ## Vibrato
 

website/src/repl/components/button/action-button.jsx

@@ -8,3 +8,34 @@ export function ActionButton({ children, label, labelIsHidden, className, ...but
     </button>
   );
 }
+
+export function SpecialActionButton(props) {
+  const { className, ...buttonProps } = props;
+
+  return (
+    <ActionButton
+      {...buttonProps}
+      className={cx('bg-background p-2 max-w-[300px] rounded-md hover:opacity-50', className)}
+    />
+  );
+}
+
+export function ActionInput({ label, className, ...props }) {
+  return (
+    <label className={cx('inline-flex items-center cursor-pointer', className)}>
+      <input {...props} className="sr-only peer" />
+
+      <span className="inline-flex items-center peer-hover:opacity-50">{label}</span>
+    </label>
+  );
+}
+
+export function SpecialActionInput({ className, ...props }) {
+  return (
+    <ActionInput
+      {...props}
+      className={className}
+      label={<span className="bg-background p-2 max-w-[300px] rounded-md">{props.label}</span>}
+    />
+  );
+}

website/src/repl/components/panel/ImportPrebakeScriptButton.jsx

@@ -0,0 +1,29 @@
+import { errorLogger } from '@strudel/core';
+import { useSettings, storePrebakeScript } from '../../../settings.mjs';
+import { SpecialActionInput } from '../button/action-button';
+
+async function importScript(script) {
+  const reader = new FileReader();
+  reader.readAsText(script);
+
+  reader.onload = () => {
+    const text = reader.result;
+    storePrebakeScript(text);
+  };
+
+  reader.onerror = () => {
+    errorLogger(new Error('failed to import prebake script'), 'importScript');
+  };
+}
+export function ImportPrebakeScriptButton() {
+  const settings = useSettings();
+
+  return (
+    <SpecialActionInput
+      type="file"
+      label="import prebake script"
+      accept=".strudel"
+      onChange={(e) => importScript(e.target.files[0])}
+    />
+  );
+}

website/src/repl/components/panel/SettingsTab.jsx

@@ -7,6 +7,8 @@ import { AudioDeviceSelector } from './AudioDeviceSelector.jsx';
 import { AudioEngineTargetSelector } from './AudioEngineTargetSelector.jsx';
 import { confirmDialog } from '../../util.mjs';
 import { DEFAULT_MAX_POLYPHONY, setMaxPolyphony, setMultiChannelOrbits } from '@strudel/webaudio';
+import { ActionButton, SpecialActionButton } from '../button/action-button.jsx';
+import { ImportPrebakeScriptButton } from './ImportPrebakeScriptButton.jsx';
 
 function Checkbox({ label, value, onChange, disabled = false }) {
   return (
@@ -113,6 +115,7 @@ export function SettingsTab({ started }) {
     isTabIndentationEnabled,
     isMultiCursorEnabled,
     patternAutoStart,
+    includePrebakeScriptInShare,
   } = useSettings();
   const shouldAlwaysSync = isUdels();
   const canChangeAudioDevice = AudioContext.prototype.setSinkId != null;
@@ -204,6 +207,15 @@ export function SettingsTab({ started }) {
           />
         </FormItem>
       </div>
+      <FormItem label="Prebake">
+        <ImportPrebakeScriptButton />
+        <Checkbox
+          label="Include prebake script in share"
+          onChange={(cbEvent) => settingsMap.setKey('includePrebakeScriptInShare', cbEvent.target.checked)}
+          value={includePrebakeScriptInShare}
+        />
+      </FormItem>
+
       <FormItem label="Keybindings">
         <ButtonGroup
           value={keybindings}
@@ -313,8 +325,7 @@ export function SettingsTab({ started }) {
       </FormItem>
       <FormItem label="Zen Mode">Try clicking the logo in the top left!</FormItem>
       <FormItem label="Reset Settings">
-        <button
-          className="bg-background p-2 max-w-[300px] rounded-md hover:opacity-50"
+        <SpecialActionButton
           onClick={() => {
             confirmDialog('Sure?').then((r) => {
               if (r) {
@@ -325,7 +336,7 @@ export function SettingsTab({ started }) {
           }}
         >
           restore default settings
-        </button>
+        </SpecialActionButton>
       </FormItem>
     </div>
   );

website/src/repl/components/panel/SoundsTab.jsx

@@ -126,7 +126,7 @@ export function SoundsTab() {
                 try {
                   // Pre-load the sample by calling onTrigger with a future time
                   // This triggers the loading but schedules playback for later
-                  const time = ctx.currentTime + 0.5; // Give 500ms for loading
+                  const time = ctx.currentTime + 0.05;
                   const ref = await onTrigger(time, params, onended);
                   trigRef.current = ref;
                   if (ref?.node) {

website/src/repl/prebake.mjs

@@ -3,6 +3,8 @@ import { aliasBank, registerSynthSounds, registerZZFXSounds, samples } from '@st
 import { registerSamplesFromDB } from './idbutils.mjs';
 import './piano.mjs';
 import './files.mjs';
+import { settingsMap } from '@src/settings.mjs';
+import { evaluate } from '@strudel/transpiler';
 
 const { BASE_URL } = import.meta.env;
 const baseNoTrailing = BASE_URL.endsWith('/') ? BASE_URL.slice(0, -1) : BASE_URL;

website/src/repl/useReplContext.jsx

@@ -6,7 +6,7 @@ This program is free software: you can redistribute it and/or modify it under th
 
 import { code2hash, getPerformanceTimeSeconds, logger, silence } from '@strudel/core';
 import { getDrawContext } from '@strudel/draw';
-import { transpiler } from '@strudel/transpiler';
+import { evaluate, transpiler } from '@strudel/transpiler';
 import {
   getAudioContextCurrentTime,
   webaudioOutput,
@@ -63,11 +63,10 @@ async function getModule(name) {
 const initialCode = `// LOADING`;
 
 export function useReplContext() {
-  const { isSyncEnabled, audioEngineTarget } = useSettings();
+  const { isSyncEnabled, audioEngineTarget, prebakeScript, includePrebakeScriptInShare } = useSettings();
   const shouldUseWebaudio = audioEngineTarget !== audioEngineTargets.osc;
   const defaultOutput = shouldUseWebaudio ? webaudioOutput : superdirtOutput;
   const getTime = shouldUseWebaudio ? getAudioContextCurrentTime : getPerformanceTimeSeconds;
-
   const init = useCallback(() => {
     const drawTime = [-2, 2];
     const drawContext = getDrawContext();
@@ -84,7 +83,12 @@ export function useReplContext() {
       pattern: silence,
       drawTime,
       drawContext,
-      prebake: async () => Promise.all([modulesLoading, presets]),
+      prebake: async () =>
+        Promise.all([modulesLoading, presets]).then(() => {
+          if (prebakeScript?.length) {
+            return evaluate(prebakeScript ?? '');
+          }
+        }),
       onUpdateState: (state) => {
         setReplState({ ...state });
       },
@@ -214,7 +218,13 @@ export function useReplContext() {
     editorRef.current.repl.evaluate(code);
   };
 
-  const handleShare = async () => shareCode(replState.code);
+  const handleShare = async () => {
+    let code = replState.code;
+    if (includePrebakeScriptInShare) {
+      code = prebakeScript + '\n' + code;
+    }
+    shareCode(code);
+  };
   const context = {
     started,
     pending,

website/src/repl/util.mjs

@@ -1,11 +1,10 @@
-import { evalScope, hash2code, logger } from '@strudel/core';
+import { code2hash, evalScope, hash2code, logger } from '@strudel/core';
 import { settingPatterns } from '../settings.mjs';
 import { setVersionDefaults } from '@strudel/webaudio';
 import { getMetadata } from '../metadata_parser';
 import { isTauri } from '../tauri.mjs';
 import './Repl.css';
 import { createClient } from '@supabase/supabase-js';
-import { nanoid } from 'nanoid';
 import { writeText } from '@tauri-apps/plugin-clipboard-manager';
 import { $featuredPatterns /* , loadDBPatterns */ } from '@src/user_pattern_utils.mjs';
 
@@ -109,9 +108,8 @@ export function confirmDialog(msg) {
   });
 }
 
-let lastShared;
-
 //RIP due to SPAM
+// let lastShared;
 // export async function shareCode(codeToShare) {
 //   // const codeToShare = activeCode || code;
 //   if (lastShared === codeToShare) {
@@ -146,9 +144,10 @@ let lastShared;
 //   });
 // }
 
-export async function shareCode() {
+export async function shareCode(codeToShare) {
   try {
-    const shareUrl = window.location.href;
+    const hash = '#' + code2hash(codeToShare);
+    const shareUrl = window.location.origin + window.location.pathname + hash;
     if (isTauri()) {
       await writeText(shareUrl);
     } else {

website/src/settings.mjs

@@ -45,11 +45,13 @@ export const defaultSettings = {
   isPanelOpen: true,
   togglePanelTrigger: 'click', //click | hover
   userPatterns: '{}',
+  prebakeScript: '',
   audioEngineTarget: audioEngineTargets.webaudio,
   isButtonRowHidden: false,
   isCSSAnimationDisabled: false,
   maxPolyphony: 128,
   multiChannelOrbits: false,
+  includePrebakeScriptInShare: true,
 };
 
 let search = null;
@@ -96,6 +98,7 @@ export function useSettings() {
     isPanelOpen: parseBoolean(state.isPanelOpen),
     userPatterns: userPatterns,
     multiChannelOrbits: parseBoolean(state.multiChannelOrbits),
+    includePrebakeScriptInShare: parseBoolean(state.includePrebakeScriptInShare),
     patternAutoStart: isUdels()
       ? false
       : state.patternAutoStart === undefined
@@ -108,6 +111,8 @@ export const setActiveFooter = (tab) => settingsMap.setKey('activeFooter', tab);
 export const setPanelPinned = (bool) => settingsMap.setKey('isPanelPinned', bool);
 export const setIsPanelOpened = (bool) => settingsMap.setKey('isPanelOpen', bool);
 
+export const storePrebakeScript = (script) => settingsMap.setKey('prebakeScript', script);
+
 export const setIsZen = (active) => settingsMap.setKey('isZen', !!active);
 
 const patternSetting = (key) =>