Merge pull request 'Feature: Eight FMs' (#1628) from glossing/strudel:glossing/fmsss into main

Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1628

packages/core/controls.mjs

@@ -72,6 +72,27 @@ export function registerControl(names, ...aliases) {
   return bag;
 }
 
+export function registerMultiControl(names, maxControls, ...aliases) {
+  names = Array.isArray(names) ? names : [names];
+  let bag = {};
+  for (let i = 1; i <= maxControls; i++) {
+    let theseAliases = [...aliases];
+    let theseNames = [...names];
+    if (i === 1) {
+      // adds e.g. fm1 as an alias for fm
+      const aliases1 = theseAliases.map((a) => `${a}1`);
+      const names1 = theseNames.map((n) => `${n}1`);
+      theseAliases = theseAliases.concat(aliases1).concat(names1);
+    } else {
+      theseAliases = theseAliases.map((a) => `${a}${i}`);
+      theseNames = theseNames.map((n) => `${n}${i}`);
+    }
+    const subBag = registerControl(theseNames, ...theseAliases);
+    bag = { ...bag, ...subBag };
+  }
+  return bag;
+}
+
 /**
  * Select a sound / sample by name. When using mininotation, you can also optionally supply 'n' and 'gain' parameters
  * separated by ':'.
@@ -435,6 +456,9 @@ export const { attack, att } = registerControl('attack', 'att');
  * Whole numbers and simple ratios sound more natural,
  * while decimal numbers and complex ratios sound metallic.
  *
+ * A number may be added afterwards to control the harmonicity of
+ * any of the 8 individual FMs (e.g. `fmh2`)
+ *
  * @name fmh
  * @param {number | Pattern} harmonicity
  * @example
@@ -444,25 +468,40 @@ export const { attack, att } = registerControl('attack', 'att');
  * ._scope()
  *
  */
-export const { fmh } = registerControl(['fmh', 'fmi'], 'fmh');
+export const { fmh, fmh1, fmh2, fmh3, fmh4, fmh5, fmh6, fmh7, fmh8 } = registerMultiControl(['fmh', 'fmi'], 8, 'fmh');
+
 /**
  * Sets the Frequency Modulation of the synth.
  * Controls the modulation index, which defines the brightness of the sound.
  *
- * @name fm
+ * A number may be added afterwards to control the modulation index of
+ * any of the 8 individual FMs (e.g. `fm3`). Also, FMs may be routed into
+ * each other with matrix commands like `fm13`, which would send `fm1` back into
+ * `fm3`
+ *
+ * @name fmi
  * @param {number | Pattern} brightness modulation index
- * @synonyms fmi
+ * @synonyms fm
  * @example
  * note("c e g b g e")
  * .fm("<0 1 2 8 32>")
  * ._scope()
+ * @example
+ * s("sine").note("F1").seg(8)
+ *  .fm(4).fm2(rand.mul(4)).fm3(saw.mul(8).slow(8))
+ *  .fmh(1.06).fmh2(10).fmh3(0.1)
  *
  */
-export const { fmi, fm } = registerControl(['fmi', 'fmh'], 'fm');
+export const { fmi, fmi1, fmi2, fmi3, fmi4, fmi5, fmi6, fmi7, fmi8, fm, fm1, fm2, fm3, fm4, fm5, fm6, fm7, fm8 } =
+  registerMultiControl(['fmi', 'fmh'], 8, 'fm');
+
 // fm envelope
 /**
  * Ramp type of fm envelope. Exp might be a bit broken..
  *
+ * A number may be added afterwards to control the envelope of
+ * any of the 8 individual FMs (e.g. `fmenv4`)
+ *
  * @name fmenv
  * @param {number | Pattern} type lin | exp
  * @example
@@ -474,11 +513,19 @@ export const { fmi, fm } = registerControl(['fmi', 'fmh'], 'fm');
  * ._scope()
  *
  */
-export const { fmenv } = registerControl('fmenv');
+export const { fmenv, fmenv1, fmenv2, fmenv3, fmenv4, fmenv5, fmenv6, fmenv7, fmenv8 } = registerMultiControl(
+  'fmenv',
+  8,
+);
+
 /**
  * Attack time for the FM envelope: time it takes to reach maximum modulation
  *
+ * A number may be added afterwards to control the attack of the envelope of
+ * any of the 8 individual FMs (e.g. `fmatt5`)
+ *
  * @name fmattack
+ * @synonyms fmatt
  * @param {number | Pattern} time attack time
  * @example
  * note("c e g b g e")
@@ -487,11 +534,33 @@ export const { fmenv } = registerControl('fmenv');
  * ._scope()
  *
  */
-export const { fmattack } = registerControl('fmattack');
+export const {
+  fmattack,
+  fmattack1,
+  fmattack2,
+  fmattack3,
+  fmattack4,
+  fmattack5,
+  fmattack6,
+  fmattack7,
+  fmattack8,
+  fmatt,
+  fmatt1,
+  fmatt2,
+  fmatt3,
+  fmatt4,
+  fmatt5,
+  fmatt6,
+  fmatt7,
+  fmatt8,
+} = registerMultiControl('fmattack', 8, 'fmatt');
 
 /**
  * Waveform of the fm modulator
  *
+ * A number may be added afterwards to control the waveform
+ * any of the 8 individual FMs (e.g. `fmwave6`)
+ *
  * @name fmwave
  * @param {number | Pattern} wave waveform
  * @example
@@ -500,12 +569,19 @@ export const { fmattack } = registerControl('fmattack');
  * n("0 1 2 3".fast(4)).chord("<Dm Am F G>").voicing().s("sawtooth").fmwave("brown").fm(.6)
  *
  */
-export const { fmwave } = registerControl('fmwave');
+export const { fmwave, fmwave1, fmwave2, fmwave3, fmwave4, fmwave5, fmwave6, fmwave7, fmwave8 } = registerMultiControl(
+  'fmwave',
+  8,
+);
 
 /**
  * Decay time for the FM envelope: seconds until the sustain level is reached after the attack phase.
  *
+ * A number may be added afterwards to control the decay of the envelope of
+ * any of the 8 individual FMs (e.g. `fmdec6`)
+ *
  * @name fmdecay
+ * @synonyms fmdec
  * @param {number | Pattern} time decay time
  * @example
  * note("c e g b g e")
@@ -515,11 +591,35 @@ export const { fmwave } = registerControl('fmwave');
  * ._scope()
  *
  */
-export const { fmdecay } = registerControl('fmdecay');
+export const {
+  fmdecay,
+  fmdecay1,
+  fmdecay2,
+  fmdecay3,
+  fmdecay4,
+  fmdecay5,
+  fmdecay6,
+  fmdecay7,
+  fmdecay8,
+  fmdec,
+  fmdec1,
+  fmdec2,
+  fmdec3,
+  fmdec4,
+  fmdec5,
+  fmdec6,
+  fmdec7,
+  fmdec8,
+} = registerMultiControl('fmdecay', 8, 'fmdec');
+
 /**
  * Sustain level for the FM envelope: how much modulation is applied after the decay phase
  *
+ * A number may be added afterwards to control the sustain of the envelope of
+ * any of the 8 individual FMs (e.g. `fmsus7`)
+ *
  * @name fmsustain
+ * @synonyms fmsus
  * @param {number | Pattern} level sustain level
  * @example
  * note("c e g b g e")
@@ -529,10 +629,69 @@ export const { fmdecay } = registerControl('fmdecay');
  * ._scope()
  *
  */
-export const { fmsustain } = registerControl('fmsustain');
-// these are not really useful... skipping for now
-export const { fmrelease } = registerControl('fmrelease');
-export const { fmvelocity } = registerControl('fmvelocity');
+export const {
+  fmsustain,
+  fmsustain1,
+  fmsustain2,
+  fmsustain3,
+  fmsustain4,
+  fmsustain5,
+  fmsustain6,
+  fmsustain7,
+  fmsustain8,
+  fmsus,
+  fmsus1,
+  fmsus2,
+  fmsus3,
+  fmsus4,
+  fmsus5,
+  fmsus6,
+  fmsus7,
+  fmsus8,
+} = registerMultiControl('fmsustain', 8, 'fmsus');
+
+/**
+ * Release time for the FM envelope: how much modulation is applied after the note is released
+ *
+ * A number may be added afterwards to control the release of the envelope of
+ * any of the 8 individual FMs (e.g. `fmrel8`)
+ *
+ * @name fmrelease
+ * @synonyms fmrel
+ * @param {number | Pattern} time release time
+ *
+ */
+export const {
+  fmrelease,
+  fmrelease1,
+  fmrelease2,
+  fmrelease3,
+  fmrelease4,
+  fmrelease5,
+  fmrelease6,
+  fmrelease7,
+  fmrelease8,
+  fmrel,
+  fmrel1,
+  fmrel2,
+  fmrel3,
+  fmrel4,
+  fmrel5,
+  fmrel6,
+  fmrel7,
+  fmrel8,
+} = registerMultiControl('fmrelease', 8, 'fmrel');
+
+// FM Matrix
+// Note: we do not declare top-level exports here since it would add
+// ~162 more explicit exports. This is likely fine as the most common use-case would be to at least
+// declare one other FM prior to utilizing the matrix functionality, but if we ever decide we need it,
+// TODO to add it explicitly / go with the globalThis approach
+for (let i = 0; i <= 8; i++) {
+  for (let j = 0; j <= 8; j++) {
+    registerControl(`fmi${i}${j}`, `fm${i}${j}`);
+  }
+}
 
 /**
  * Select the sound bank to use. To be used together with `s`. The bank name (+ "_") will be prepended to the value of `s`.

packages/superdough/helpers.mjs

@@ -1,7 +1,7 @@
 import { getAudioContext } from './audioContext.mjs';
-import { clamp, nanFallback, midiToFreq, noteToMidi } from './util.mjs';
-import { getNoiseBuffer } from './noise.mjs';
 import { logger } from './logger.mjs';
+import { getNoiseBuffer } from './noise.mjs';
+import { clamp, nanFallback, midiToFreq, noteToMidi } from './util.mjs';
 
 export const noises = ['pink', 'white', 'brown', 'crackle'];
 
@@ -358,7 +358,8 @@ export function webAudioTimeout(audioContext, onComplete, startTime, stopTime) {
   constantNode.stop(stopTime);
   return constantNode;
 }
-const mod = (freq, range = 1, type = 'sine') => {
+
+const mod = (freq, type = 'sine') => {
   const ctx = getAudioContext();
   let osc;
   if (noises.includes(type)) {
@@ -370,69 +371,89 @@ const mod = (freq, range = 1, type = 'sine') => {
     osc.type = type;
     osc.frequency.value = freq;
   }
-
   osc.start();
-  const g = gainNode(range);
-  osc.connect(g); // -range, range
-  return { node: g, stop: (t) => osc.stop(t), osc: osc };
+  return osc;
 };
-const fm = (frequencyparam, harmonicityRatio, modulationIndex, wave = 'sine') => {
+
+const fm = (frequencyparam, harmonicityRatio, wave = 'sine') => {
   const carrfreq = frequencyparam.value;
   const modfreq = carrfreq * harmonicityRatio;
-  const modgain = modfreq * modulationIndex;
-  return mod(modfreq, modgain, wave);
+  return { osc: mod(modfreq, wave), freq: modfreq };
 };
+
 export function applyFM(param, value, begin) {
-  const {
-    fmh: fmHarmonicity = 1,
-    fmi: fmModulationIndex,
-    fmenv: fmEnvelopeType = 'exp',
-    fmattack: fmAttack,
-    fmdecay: fmDecay,
-    fmsustain: fmSustain,
-    fmrelease: fmRelease,
-    fmvelocity: fmVelocity,
-    fmwave: fmWaveform = 'sine',
-    duration,
-  } = value;
-  let modulator;
-  let stop = () => {};
-
-  if (fmModulationIndex) {
-    const ac = getAudioContext();
-    const envGain = ac.createGain();
-    const fmmod = fm(param, fmHarmonicity, fmModulationIndex, fmWaveform);
-
-    modulator = fmmod.node;
-    stop = fmmod.stop;
-    if (![fmAttack, fmDecay, fmSustain, fmRelease, fmVelocity].some((v) => v !== undefined)) {
-      // no envelope by default
-      modulator.connect(param);
-    } else {
-      const [attack, decay, sustain, release] = getADSRValues([fmAttack, fmDecay, fmSustain, fmRelease]);
-      const holdEnd = begin + duration;
-      getParamADSR(
-        envGain.gain,
-        attack,
-        decay,
-        sustain,
-        release,
-        0,
-        1,
-        begin,
-        holdEnd,
-        fmEnvelopeType === 'exp' ? 'exponential' : 'linear',
-      );
-      modulator.connect(envGain);
-      envGain.connect(param);
+  const ac = getAudioContext();
+  const toStop = []; // fm oscillators we will expose `stop` for
+  const fms = {};
+  // Matrix
+  for (let i = 1; i <= 8; i++) {
+    for (let j = 0; j <= 8; j++) {
+      let control;
+      if (i === j + 1) {
+        // Standard fm3 -> fm2 -> fm1 -> param usage
+        const iS = i === 1 ? '' : i;
+        control = `fmi${iS}`;
+      } else {
+        control = `fmi${i}${j}`;
+      }
+      const amt = value[control];
+      if (!amt) continue;
+      let io = [];
+      for (let [isMod, idx] of [
+        [true, i], // source
+        [false, j], // target
+      ]) {
+        if (idx === 0) {
+          io.push(param);
+          continue;
+        }
+        if (!fms[idx]) {
+          const idxS = idx === 1 ? '' : idx;
+          const { osc, freq } = fm(param, value[`fmh${idxS}`] ?? 1, value[`fmwave${idxS}`] ?? 'sine');
+          toStop.push(osc);
+          const toCleanup = [osc]; // nodes we want to cleanup after oscillator `stop`
+          const adsr = ['attack', 'decay', 'sustain', 'release'].map((s) => value[`fm${s}${idxS}`]);
+          let output = osc;
+          if (adsr.some((v) => v !== undefined)) {
+            const envGain = ac.createGain();
+            const [attack, decay, sustain, release] = getADSRValues(adsr);
+            const holdEnd = begin + value.duration;
+            const fmEnvelopeType = value[`fmenv${idxS}`] ?? 'exp';
+            getParamADSR(
+              envGain.gain,
+              attack,
+              decay,
+              sustain,
+              release,
+              0,
+              1,
+              begin,
+              holdEnd,
+              fmEnvelopeType === 'exp' ? 'exponential' : 'linear',
+            );
+            toCleanup.push(envGain);
+            output = osc.connect(envGain);
+          }
+          fms[idx] = { input: osc.frequency, output, freq, osc, toCleanup };
+        }
+        const { input, output, freq, osc, toCleanup } = fms[idx];
+        const g = gainNode(amt * freq);
+        io.push(isMod ? output.connect(g) : input);
+        cleanupOnEnd(osc, [...toCleanup, g]);
+      }
+      if (!io[1]) {
+        logger(
+          `[superdough] control ${control} failed to connect FM ${i} to target ${j} due to missing frequency parameter (likely because fm${j} is noise)`,
+          'warning',
+        );
+        continue;
+      }
+      io[0].connect(io[1]);
     }
-    fmmod.osc.onended = () => {
-      envGain.disconnect();
-      modulator.disconnect();
-      fmmod.osc.disconnect();
-    };
   }
-  return { stop };
+  return {
+    stop: (t) => toStop.forEach((m) => m?.stop(t)),
+  };
 }
 
 // Saturation curves
@@ -548,10 +569,9 @@ export const getFrequencyFromValue = (value, defaultNote = 36) => {
 // This helper should be used instead of the `node.onended = callback` pattern
 // It adds a mechanism to help minimize gc retention
 export const onceEnded = (node, callback) => {
-  let onended = callback;
+  const onended = callback;
   node.onended = function cleanup() {
     onended && onended();
-    onended = null;
     this.onended = null;
   };
 };
@@ -596,3 +616,8 @@ export const releaseAudioNode = (node) => {
     node.parameters.get('end')?.setValueAtTime(0, 0);
   }
 };
+
+// Once the `anchor` node has ended, release all nodes in `toCleanup`
+export const cleanupOnEnd = (anchor, toCleanup) => {
+  onceEnded(anchor, () => toCleanup.forEach((n) => releaseAudioNode(n)));
+};

test/__snapshots__/examples.test.mjs.snap

@@ -4092,35 +4092,6 @@ exports[`runs examples > example "floor" example index 0 1`] = `
 ]
 `;
 
-exports[`runs examples > example "fm" example index 0 1`] = `
-[
-  "[ 0/1 → 1/6 | note:c fmi:0 ]",
-  "[ 1/6 → 1/3 | note:e fmi:0 ]",
-  "[ 1/3 → 1/2 | note:g fmi:0 ]",
-  "[ 1/2 → 2/3 | note:b fmi:0 ]",
-  "[ 2/3 → 5/6 | note:g fmi:0 ]",
-  "[ 5/6 → 1/1 | note:e fmi:0 ]",
-  "[ 1/1 → 7/6 | note:c fmi:1 ]",
-  "[ 7/6 → 4/3 | note:e fmi:1 ]",
-  "[ 4/3 → 3/2 | note:g fmi:1 ]",
-  "[ 3/2 → 5/3 | note:b fmi:1 ]",
-  "[ 5/3 → 11/6 | note:g fmi:1 ]",
-  "[ 11/6 → 2/1 | note:e fmi:1 ]",
-  "[ 2/1 → 13/6 | note:c fmi:2 ]",
-  "[ 13/6 → 7/3 | note:e fmi:2 ]",
-  "[ 7/3 → 5/2 | note:g fmi:2 ]",
-  "[ 5/2 → 8/3 | note:b fmi:2 ]",
-  "[ 8/3 → 17/6 | note:g fmi:2 ]",
-  "[ 17/6 → 3/1 | note:e fmi:2 ]",
-  "[ 3/1 → 19/6 | note:c fmi:8 ]",
-  "[ 19/6 → 10/3 | note:e fmi:8 ]",
-  "[ 10/3 → 7/2 | note:g fmi:8 ]",
-  "[ 7/2 → 11/3 | note:b fmi:8 ]",
-  "[ 11/3 → 23/6 | note:g fmi:8 ]",
-  "[ 23/6 → 4/1 | note:e fmi:8 ]",
-]
-`;
-
 exports[`runs examples > example "fmattack" example index 0 1`] = `
 [
   "[ 0/1 → 1/6 | note:c fmi:4 fmattack:0 ]",
@@ -4237,6 +4208,72 @@ exports[`runs examples > example "fmh" example index 0 1`] = `
 ]
 `;
 
+exports[`runs examples > example "fmi" example index 0 1`] = `
+[
+  "[ 0/1 → 1/6 | note:c fmi:0 ]",
+  "[ 1/6 → 1/3 | note:e fmi:0 ]",
+  "[ 1/3 → 1/2 | note:g fmi:0 ]",
+  "[ 1/2 → 2/3 | note:b fmi:0 ]",
+  "[ 2/3 → 5/6 | note:g fmi:0 ]",
+  "[ 5/6 → 1/1 | note:e fmi:0 ]",
+  "[ 1/1 → 7/6 | note:c fmi:1 ]",
+  "[ 7/6 → 4/3 | note:e fmi:1 ]",
+  "[ 4/3 → 3/2 | note:g fmi:1 ]",
+  "[ 3/2 → 5/3 | note:b fmi:1 ]",
+  "[ 5/3 → 11/6 | note:g fmi:1 ]",
+  "[ 11/6 → 2/1 | note:e fmi:1 ]",
+  "[ 2/1 → 13/6 | note:c fmi:2 ]",
+  "[ 13/6 → 7/3 | note:e fmi:2 ]",
+  "[ 7/3 → 5/2 | note:g fmi:2 ]",
+  "[ 5/2 → 8/3 | note:b fmi:2 ]",
+  "[ 8/3 → 17/6 | note:g fmi:2 ]",
+  "[ 17/6 → 3/1 | note:e fmi:2 ]",
+  "[ 3/1 → 19/6 | note:c fmi:8 ]",
+  "[ 19/6 → 10/3 | note:e fmi:8 ]",
+  "[ 10/3 → 7/2 | note:g fmi:8 ]",
+  "[ 7/2 → 11/3 | note:b fmi:8 ]",
+  "[ 11/3 → 23/6 | note:g fmi:8 ]",
+  "[ 23/6 → 4/1 | note:e fmi:8 ]",
+]
+`;
+
+exports[`runs examples > example "fmi" example index 1 1`] = `
+[
+  "[ 0/1 → 1/8 | s:sine note:F1 fmi:4 fmi2:0 fmi3:0 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 1/8 → 1/4 | s:sine note:F1 fmi:4 fmi2:2.7408622801303864 fmi3:0.125 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 1/4 → 3/8 | s:sine note:F1 fmi:4 fmi2:1.479038767516613 fmi3:0.25 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 3/8 → 1/2 | s:sine note:F1 fmi:4 fmi2:1.605570062994957 fmi3:0.375 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 1/2 → 5/8 | s:sine note:F1 fmi:4 fmi2:1.041922464966774 fmi3:0.5 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 5/8 → 3/4 | s:sine note:F1 fmi:4 fmi2:0.5425434708595276 fmi3:0.625 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 3/4 → 7/8 | s:sine note:F1 fmi:4 fmi2:0.7833059206604958 fmi3:0.75 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 7/8 → 1/1 | s:sine note:F1 fmi:4 fmi2:1.590524323284626 fmi3:0.875 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 1/1 → 9/8 | s:sine note:F1 fmi:4 fmi2:2.078168660402298 fmi3:1 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 9/8 → 5/4 | s:sine note:F1 fmi:4 fmi2:2.689958058297634 fmi3:1.125 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 5/4 → 11/8 | s:sine note:F1 fmi:4 fmi2:2.914912812411785 fmi3:1.25 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 11/8 → 3/2 | s:sine note:F1 fmi:4 fmi2:0.7312150076031685 fmi3:1.375 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 3/2 → 13/8 | s:sine note:F1 fmi:4 fmi2:2.4336322993040085 fmi3:1.5 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 13/8 → 7/4 | s:sine note:F1 fmi:4 fmi2:1.987018845975399 fmi3:1.625 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 7/4 → 15/8 | s:sine note:F1 fmi:4 fmi2:0.8189515843987465 fmi3:1.75 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 15/8 → 2/1 | s:sine note:F1 fmi:4 fmi2:2.3782287165522575 fmi3:1.875 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 2/1 → 17/8 | s:sine note:F1 fmi:4 fmi2:3.838108479976654 fmi3:2 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 17/8 → 9/4 | s:sine note:F1 fmi:4 fmi2:3.613561175763607 fmi3:2.125 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 9/4 → 19/8 | s:sine note:F1 fmi:4 fmi2:1.3819300457835197 fmi3:2.25 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 19/8 → 5/2 | s:sine note:F1 fmi:4 fmi2:3.346026562154293 fmi3:2.375 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 5/2 → 21/8 | s:sine note:F1 fmi:4 fmi2:1.8344642966985703 fmi3:2.5 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 21/8 → 11/4 | s:sine note:F1 fmi:4 fmi2:0.6407739371061325 fmi3:2.625 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 11/4 → 23/8 | s:sine note:F1 fmi:4 fmi2:2.5329310819506645 fmi3:2.75 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 23/8 → 3/1 | s:sine note:F1 fmi:4 fmi2:0.06501668691635132 fmi3:2.875 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 3/1 → 25/8 | s:sine note:F1 fmi:4 fmi2:0.8691564425826073 fmi3:3 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 25/8 → 13/4 | s:sine note:F1 fmi:4 fmi2:1.3729755133390427 fmi3:3.125 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 13/4 → 27/8 | s:sine note:F1 fmi:4 fmi2:3.9694602862000465 fmi3:3.25 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 27/8 → 7/2 | s:sine note:F1 fmi:4 fmi2:1.6347672045230865 fmi3:3.375 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 7/2 → 29/8 | s:sine note:F1 fmi:4 fmi2:1.639795258641243 fmi3:3.5 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 29/8 → 15/4 | s:sine note:F1 fmi:4 fmi2:3.7565943151712418 fmi3:3.625 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 15/4 → 31/8 | s:sine note:F1 fmi:4 fmi2:3.2486692890524864 fmi3:3.75 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+  "[ 31/8 → 4/1 | s:sine note:F1 fmi:4 fmi2:2.9446661546826363 fmi3:3.875 fmh:1.06 fmh2:10 fmh3:0.1 ]",
+]
+`;
+
 exports[`runs examples > example "fmsustain" example index 0 1`] = `
 [
   "[ 0/1 → 1/6 | note:c fmi:4 fmdecay:0.1 fmsustain:1 ]",