Merge pull request #213 from tidalcycles/feedbackdelay

Feedback Delay

packages/webaudio/feedbackdelay.mjs

@@ -0,0 +1,31 @@
+if (typeof DelayNode !== 'undefined') {
+  class FeedbackDelayNode extends DelayNode {
+    constructor(ac, wet, time, feedback) {
+      super(ac);
+      wet = Math.abs(wet);
+      this.delayTime.value = time;
+
+      const feedbackGain = ac.createGain();
+      feedbackGain.gain.value = Math.min(Math.abs(feedback), 0.995);
+      this.feedback = feedbackGain.gain;
+
+      const delayGain = ac.createGain();
+      delayGain.gain.value = wet;
+      this.delayGain = delayGain;
+
+      this.connect(feedbackGain);
+      this.connect(delayGain);
+      feedbackGain.connect(this);
+
+      this.connect = (target) => delayGain.connect(target);
+      return this;
+    }
+    start(t) {
+      this.delayGain.gain.setValueAtTime(this.delayGain.gain.value, t + this.delayTime.value);
+    }
+  }
+
+  AudioContext.prototype.createFeedbackDelay = function (wet, time, feedback) {
+    return new FeedbackDelayNode(this, wet, time, feedback);
+  };
+}

packages/webaudio/webaudio.mjs

@@ -7,6 +7,7 @@ This program is free software: you can redistribute it and/or modify it under th
 // import { Pattern, getFrequency, patternify2 } from '@strudel.cycles/core';
 import * as strudel from '@strudel.cycles/core';
 import { fromMidi, toMidi } from '@strudel.cycles/core';
+import './feedbackdelay.mjs';
 import { loadBuffer } from './sampler.mjs';
 const { Pattern } = strudel;
 import './vowel.mjs';
@@ -53,6 +54,17 @@ const getADSR = (attack, decay, sustain, release, velocity, begin, end) => {
   gainNode.gain.setValueAtTime(sustain * velocity, end); // sustain end
   gainNode.gain.linearRampToValueAtTime(0, end + release); // release
   // for some reason, using exponential ramping creates little cracklings
+  /* let t = begin;
+  gainNode.gain.setValueAtTime(0, t);
+  gainNode.gain.exponentialRampToValueAtTime(velocity, (t += attack));
+  const sustainGain = Math.max(sustain * velocity, 0.001);
+  gainNode.gain.exponentialRampToValueAtTime(sustainGain, (t += decay));
+  if (end - begin < attack + decay) {
+    gainNode.gain.cancelAndHoldAtTime(end);
+  } else {
+    gainNode.gain.setValueAtTime(sustainGain, end);
+  }
+  gainNode.gain.exponentialRampToValueAtTime(0.001, end + release); // release */
   return gainNode;
 };
 
@@ -170,8 +182,34 @@ if (typeof window !== 'undefined') {
   }
 }
 
+function gainNode(value) {
+  const node = getAudioContext().createGain();
+  node.gain.value = value;
+  return node;
+}
 const cutGroups = [];
 
+let delays = {};
+function getDelay(orbit, delaytime, delayfeedback, t) {
+  if (!delays[orbit]) {
+    const ac = getAudioContext();
+    const dly = ac.createFeedbackDelay(1, delaytime, delayfeedback);
+    dly.start(t);
+    dly.connect(getDestination());
+    delays[orbit] = dly;
+  }
+  delays[orbit].delayTime.value !== delaytime && delays[orbit].delayTime.setValueAtTime(delaytime, t);
+  delays[orbit].feedback.value !== delayfeedback && delays[orbit].feedback.setValueAtTime(delayfeedback, t);
+  return delays[orbit];
+}
+
+function effectSend(input, effect, wet) {
+  const send = gainNode(wet);
+  input.connect(send);
+  send.connect(effect);
+  return send;
+}
+
 // export const webaudioOutput = async (t, hap, ct, cps) => {
 export const webaudioOutput = async (hap, deadline, hapDuration) => {
   try {
@@ -210,10 +248,14 @@ export const webaudioOutput = async (hap, deadline, hapDuration) => {
       begin = 0,
       end = 1,
       vowel,
+      delay = 0,
+      delayfeedback = 0.5,
+      delaytime = 0.25,
       unit,
       nudge = 0, // TODO: is this in seconds?
       cut,
       loop,
+      orbit = 1,
     } = hap.value;
     const { velocity = 1 } = hap.context;
     gain *= velocity; // legacy fix for velocity
@@ -239,9 +281,7 @@ export const webaudioOutput = async (hap, deadline, hapDuration) => {
       const o = getOscillator({ t, s, freq, duration: hapDuration, release });
       chain.push(o);
       // level down oscillators as they are really loud compared to samples i've tested
-      const g = ac.createGain();
+      chain.push(gainNode(0.3));
-      g.gain.value = 0.3;
-      chain.push(g);
       // TODO: make adsr work with samples without pops
       // envelope
       const adsr = getADSR(attack, decay, sustain, release, 1, t, t + hapDuration);
@@ -309,31 +349,45 @@ export const webaudioOutput = async (hap, deadline, hapDuration) => {
       const adsr = getADSR(attack, decay, sustain, release, 1, t, t + duration);
       chain.push(adsr);
     }
-    // master out
+
-    const master = ac.createGain();
+    // gain stage
-    master.gain.value = gain;
+    chain.push(gainNode(gain));
-    chain.push(master);
 
     // filters
     cutoff !== undefined && chain.push(getFilter('lowpass', cutoff, resonance));
     hcutoff !== undefined && chain.push(getFilter('highpass', hcutoff, hresonance));
     bandf !== undefined && chain.push(getFilter('bandpass', bandf, bandq));
     vowel !== undefined && chain.push(ac.createVowelFilter(vowel));
+
+    // effects
     coarse !== undefined && chain.push(getWorklet(ac, 'coarse-processor', { coarse }));
     crush !== undefined && chain.push(getWorklet(ac, 'crush-processor', { crush }));
     shape !== undefined && chain.push(getWorklet(ac, 'shape-processor', { shape }));
-    // TODO delay / delaytime / delayfeedback
+
     // panning
     if (pan !== undefined) {
       const panner = ac.createStereoPanner();
       panner.pan.value = 2 * pan - 1;
       chain.push(panner);
     }
+
+    // last gain
+    const post = gainNode(1);
+    chain.push(post);
+    post.connect(getDestination());
+
+    // delay
+    let delaySend;
+    if (delay > 0 && delaytime > 0 && delayfeedback > 0) {
+      const delyNode = getDelay(orbit, delaytime, delayfeedback, t);
+      delaySend = effectSend(post, delyNode, delay);
+    }
+
     // connect chain elements together
     chain.slice(1).reduce((last, current) => last.connect(current), chain[0]);
-    chain[chain.length - 1].connect(getDestination());
+
     // disconnect all nodes when source node has ended:
-    chain[0].onended = () => chain.forEach((n) => n.disconnect());
+    chain[0].onended = () => chain.concat([delaySend]).forEach((n) => n?.disconnect());
   } catch (e) {
     console.warn('.out error:', e);
   }

repl/src/testtunes.mjs

@@ -0,0 +1,164 @@
+export const timeCatMini = `stack(
+  "c3@3 [eb3, g3, [c4 d4]/2]",
+  "c2 g2",
+  "[eb4@5 [f4 eb4 d4]@3] [eb4 c4]/2".slow(8)
+)`;
+
+export const timeCat = `stack(
+  timeCat([3, c3], [1, stack(eb3, g3, seq(c4, d4).slow(2))]),
+  seq(c2, g2),
+  seq(
+    timeCat([5, eb4], [3, seq(f4, eb4, d4)]), 
+    seq(eb4, c4).slow(2)
+  ).slow(4)
+)`;
+
+export const shapeShifted = `stack(
+  seq(
+    e5, [b4, c5], d5, [c5, b4],
+    a4, [a4, c5], e5, [d5, c5],
+    b4, [r, c5], d5, e5,
+    c5, a4, a4, r,
+    [r, d5], [r, f5], a5, [g5, f5],
+    e5, [r, c5], e5, [d5, c5],
+    b4, [b4, c5], d5, e5,
+    c5, a4, a4, r,
+  ).rev(),
+  seq(
+    e2, e3, e2, e3, e2, e3, e2, e3,
+    a2, a3, a2, a3, a2, a3, a2, a3,
+    gs2, gs3, gs2, gs3, e2, e3, e2, e3,
+    a2, a3, a2, a3, a2, a3, b1, c2,
+    d2, d3, d2, d3, d2, d3, d2, d3,
+    c2, c3, c2, c3, c2, c3, c2, c3,
+    b1, b2, b1, b2, e2, e3, e2, e3,
+    a1, a2, a1, a2, a1, a2, a1, a2,
+  ).rev()
+).slow(16)`;
+
+/* export const tetrisWithFunctions = `stack(seq(
+  'e5', seq('b4', 'c5'), 'd5', seq('c5', 'b4'),
+  'a4', seq('a4', 'c5'), 'e5', seq('d5', 'c5'),
+  'b4', seq(r, 'c5'), 'd5', 'e5',
+  'c5', 'a4', 'a4', r,
+  seq(r, 'd5'), seq(r, 'f5'), 'a5', seq('g5', 'f5'),
+  'e5', seq(r, 'c5'), 'e5', seq('d5', 'c5'),
+  'b4', seq('b4', 'c5'), 'd5', 'e5',
+  'c5', 'a4', 'a4', r),
+  seq(
+    'e2', 'e3', 'e2', 'e3', 'e2', 'e3', 'e2', 'e3',
+    'a2', 'a3', 'a2', 'a3', 'a2', 'a3', 'a2', 'a3',
+    'g#2', 'g#3', 'g#2', 'g#3', 'e2', 'e3', 'e2', 'e3',
+    'a2', 'a3', 'a2', 'a3', 'a2', 'a3', 'b1', 'c2',
+    'd2', 'd3', 'd2', 'd3', 'd2', 'd3', 'd2', 'd3',
+    'c2', 'c3', 'c2', 'c3', 'c2', 'c3', 'c2', 'c3',
+    'b1', 'b2', 'b1', 'b2', 'e2', 'e3', 'e2', 'e3',
+    'a1', 'a2', 'a1', 'a2', 'a1', 'a2', 'a1', 'a2',
+  )
+).slow(16)`; */
+
+/* export const tetris = `stack(
+  seq(
+    "e5 [b4 c5] d5 [c5 b4]",
+    "a4 [a4 c5] e5 [d5 c5]",
+    "b4 [~ c5] d5 e5",
+    "c5 a4 a4 ~",
+    "[~ d5] [~ f5] a5 [g5 f5]",
+    "e5 [~ c5] e5 [d5 c5]",
+    "b4 [b4 c5] d5 e5",
+    "c5 a4 a4 ~"
+  ),
+  seq(
+    "e2 e3 e2 e3 e2 e3 e2 e3",
+    "a2 a3 a2 a3 a2 a3 a2 a3",
+    "g#2 g#3 g#2 g#3 e2 e3 e2 e3",
+    "a2 a3 a2 a3 a2 a3 b1 c2",
+    "d2 d3 d2 d3 d2 d3 d2 d3",
+    "c2 c3 c2 c3 c2 c3 c2 c3",
+    "b1 b2 b1 b2 e2 e3 e2 e3",
+    "a1 a2 a1 a2 a1 a2 a1 a2",
+  )
+).slow(16)`;
+ */
+
+export const whirlyStrudel = `seq(e4, [b2,  b3], c4)
+.every(4, fast(2))
+.every(3, slow(1.5))
+.fast(cat(1.25, 1, 1.5))
+.every(2, _ => seq(e4, r, e3, d4, r))`;
+
+export const transposedChordsHacked = `stack(
+  "c2 eb2 g2",
+  "Cm7".voicings(['g2','c4']).slow(2)
+).transpose(
+  "<1 2 3 2>".slow(2)
+).transpose(5)`;
+
+export const scaleTranspose = `"f2,f3,c4,ab4"
+.scale(seq('F minor', 'F harmonic minor').slow(4))
+.scaleTranspose("<0 -1 -2 -3>")
+.transpose("0 1".slow(16))`;
+
+export const struct = `stack(
+  "c2 g2 a2 [e2@2 eb2] d2 a2 g2 [d2 ~ db2]",
+  "[C^7 A7] [Dm7 G7]".struct("[x@2 x] [~@2 x] [~ x@2]@2 [x ~@2] ~ [~@2 x@4]@2")
+  .voicings(['G3','A4'])
+).slow(4)`;
+
+export const magicSofa = `stack(
+  "<C^7 F^7 ~> <Dm7 G7 A7 ~>"
+   .every(2, fast(2))
+   .voicings(),
+  "<c2 f2 g2> <d2 g2 a2 e2>"
+).transpose("<0 2 3 4>")`;
+// below doesn't work anymore due to constructor cleanup
+// ).slow(1).transpose.cat(0, 2, 3, 4)`;
+
+export const confusedPhone = `"[g2 ~@1.3] [c3 ~@1.3]"
+.superimpose(
+  transpose(-12).late(0),
+  transpose(7).late(0.1),
+  transpose(10).late(0.2),
+  transpose(12).late(0.3),
+  transpose(24).late(0.4)
+)
+.scale(cat('C dorian', 'C mixolydian'))
+.scaleTranspose("<0 1 2 1>")
+.slow(2)`;
+
+export const technoDrums = `stack(
+  "c1*2".tone(new MembraneSynth().toDestination()),
+  "~ x".tone(new NoiseSynth().toDestination()),
+  "[~ c4]*2".tone(new MetalSynth().set({envelope:{decay:0.06,sustain:0}}).chain(new Gain(0.5),getDestination()))
+)`;
+
+/*
+export const caverave = `const delay = new FeedbackDelay(1/8, .4).chain(vol(0.5), out());
+const kick = new MembraneSynth().chain(vol(.8), out());
+const snare = new NoiseSynth().chain(vol(.8), out());
+const hihat = new MetalSynth().set(adsr(0, .08, 0, .1)).chain(vol(.3).connect(delay),out());
+const bass = new Synth().set({ ...osc('sawtooth'), ...adsr(0, .1, .4) }).chain(lowpass(900), vol(.5), out());
+const keys = new PolySynth().set({ ...osc('sawtooth'), ...adsr(0, .5, .2, .7) }).chain(lowpass(1200), vol(.5), out());
+
+const drums = stack(
+  "c1*2".tone(kick).mask("<x@7 ~>/8"),
+  "~ <x!7 [x@3 x]>".tone(snare).mask("<x@7 ~>/4"),
+  "[~ c4]*2".tone(hihat)
+);
+
+const thru = (x) => x.transpose("<0 1>/8").transpose(-1);
+const synths = stack(
+  "<eb4 d4 c4 b3>/2".scale(timeCat([3,'C minor'],[1,'C melodic minor']).slow(8)).struct("[~ x]*2")
+  .layer(
+    scaleTranspose(0).early(0),
+    scaleTranspose(2).early(1/8),
+    scaleTranspose(7).early(1/4),
+    scaleTranspose(8).early(3/8)
+  ).apply(thru).tone(keys).mask("<~ x>/16"),
+  "<C2 Bb1 Ab1 [G1 [G2 G1]]>/2".struct("[x [~ x] <[~ [~ x]]!3 [x x]>@2]/2".fast(2)).apply(thru).tone(bass),
+  "<Cm7 Bb7 Fm7 G7b13>/2".struct("~ [x@0.1 ~]".fast(2)).voicings().apply(thru).every(2, early(1/8)).tone(keys).mask("<x@7 ~>/8".early(1/4))
+)
+stack(
+  drums.fast(2), 
+  synths
+).slow(2)`; */

repl/src/tunes.mjs

@@ -4,88 +4,6 @@ Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/st
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-export const timeCatMini = `stack(
-  "c3@3 [eb3, g3, [c4 d4]/2]",
-  "c2 g2",
-  "[eb4@5 [f4 eb4 d4]@3] [eb4 c4]/2".slow(8)
-)`;
-
-export const timeCat = `stack(
-  timeCat([3, c3], [1, stack(eb3, g3, seq(c4, d4).slow(2))]),
-  seq(c2, g2),
-  seq(
-    timeCat([5, eb4], [3, seq(f4, eb4, d4)]), 
-    seq(eb4, c4).slow(2)
-  ).slow(4)
-)`;
-
-export const shapeShifted = `stack(
-  seq(
-    e5, [b4, c5], d5, [c5, b4],
-    a4, [a4, c5], e5, [d5, c5],
-    b4, [r, c5], d5, e5,
-    c5, a4, a4, r,
-    [r, d5], [r, f5], a5, [g5, f5],
-    e5, [r, c5], e5, [d5, c5],
-    b4, [b4, c5], d5, e5,
-    c5, a4, a4, r,
-  ).rev(),
-  seq(
-    e2, e3, e2, e3, e2, e3, e2, e3,
-    a2, a3, a2, a3, a2, a3, a2, a3,
-    gs2, gs3, gs2, gs3, e2, e3, e2, e3,
-    a2, a3, a2, a3, a2, a3, b1, c2,
-    d2, d3, d2, d3, d2, d3, d2, d3,
-    c2, c3, c2, c3, c2, c3, c2, c3,
-    b1, b2, b1, b2, e2, e3, e2, e3,
-    a1, a2, a1, a2, a1, a2, a1, a2,
-  ).rev()
-).slow(16)`;
-
-/* export const tetrisWithFunctions = `stack(seq(
-  'e5', seq('b4', 'c5'), 'd5', seq('c5', 'b4'),
-  'a4', seq('a4', 'c5'), 'e5', seq('d5', 'c5'),
-  'b4', seq(r, 'c5'), 'd5', 'e5',
-  'c5', 'a4', 'a4', r,
-  seq(r, 'd5'), seq(r, 'f5'), 'a5', seq('g5', 'f5'),
-  'e5', seq(r, 'c5'), 'e5', seq('d5', 'c5'),
-  'b4', seq('b4', 'c5'), 'd5', 'e5',
-  'c5', 'a4', 'a4', r),
-  seq(
-    'e2', 'e3', 'e2', 'e3', 'e2', 'e3', 'e2', 'e3',
-    'a2', 'a3', 'a2', 'a3', 'a2', 'a3', 'a2', 'a3',
-    'g#2', 'g#3', 'g#2', 'g#3', 'e2', 'e3', 'e2', 'e3',
-    'a2', 'a3', 'a2', 'a3', 'a2', 'a3', 'b1', 'c2',
-    'd2', 'd3', 'd2', 'd3', 'd2', 'd3', 'd2', 'd3',
-    'c2', 'c3', 'c2', 'c3', 'c2', 'c3', 'c2', 'c3',
-    'b1', 'b2', 'b1', 'b2', 'e2', 'e3', 'e2', 'e3',
-    'a1', 'a2', 'a1', 'a2', 'a1', 'a2', 'a1', 'a2',
-  )
-).slow(16)`; */
-
-/* export const tetris = `stack(
-  seq(
-    "e5 [b4 c5] d5 [c5 b4]",
-    "a4 [a4 c5] e5 [d5 c5]",
-    "b4 [~ c5] d5 e5",
-    "c5 a4 a4 ~",
-    "[~ d5] [~ f5] a5 [g5 f5]",
-    "e5 [~ c5] e5 [d5 c5]",
-    "b4 [b4 c5] d5 e5",
-    "c5 a4 a4 ~"
-  ),
-  seq(
-    "e2 e3 e2 e3 e2 e3 e2 e3",
-    "a2 a3 a2 a3 a2 a3 a2 a3",
-    "g#2 g#3 g#2 g#3 e2 e3 e2 e3",
-    "a2 a3 a2 a3 a2 a3 b1 c2",
-    "d2 d3 d2 d3 d2 d3 d2 d3",
-    "c2 c3 c2 c3 c2 c3 c2 c3",
-    "b1 b2 b1 b2 e2 e3 e2 e3",
-    "a1 a2 a1 a2 a1 a2 a1 a2",
-  )
-).slow(16)`;
- */
 export const tetrisMini = `\`[[e5 [b4 c5] d5 [c5 b4]]
 [a4 [a4 c5] e5 [d5 c5]]
 [b4 [~ c5] d5 e5]
@@ -104,12 +22,6 @@ export const tetrisMini = `\`[[e5 [b4 c5] d5 [c5 b4]]
 [[a1 a2]*4]\`.slow(16)
 `;
 
-export const whirlyStrudel = `seq(e4, [b2,  b3], c4)
-.every(4, fast(2))
-.every(3, slow(1.5))
-.fast(cat(1.25, 1, 1.5))
-.every(2, _ => seq(e4, r, e3, d4, r))`;
-
 export const swimming = `stack(
   seq(
     "~",
@@ -222,45 +134,6 @@ export const giantStepsReggae = `stack(
   .struct("x ~".fast(4*8))
 ).slow(25)`;
 
-export const transposedChordsHacked = `stack(
-  "c2 eb2 g2",
-  "Cm7".voicings(['g2','c4']).slow(2)
-).transpose(
-  "<1 2 3 2>".slow(2)
-).transpose(5)`;
-
-export const scaleTranspose = `"f2,f3,c4,ab4"
-.scale(seq('F minor', 'F harmonic minor').slow(4))
-.scaleTranspose("<0 -1 -2 -3>")
-.transpose("0 1".slow(16))`;
-
-export const struct = `stack(
-  "c2 g2 a2 [e2@2 eb2] d2 a2 g2 [d2 ~ db2]",
-  "[C^7 A7] [Dm7 G7]".struct("[x@2 x] [~@2 x] [~ x@2]@2 [x ~@2] ~ [~@2 x@4]@2")
-  .voicings(['G3','A4'])
-).slow(4)`;
-
-export const magicSofa = `stack(
-  "<C^7 F^7 ~> <Dm7 G7 A7 ~>"
-   .every(2, fast(2))
-   .voicings(),
-  "<c2 f2 g2> <d2 g2 a2 e2>"
-).transpose("<0 2 3 4>")`;
-// below doesn't work anymore due to constructor cleanup
-// ).slow(1).transpose.cat(0, 2, 3, 4)`;
-
-export const confusedPhone = `"[g2 ~@1.3] [c3 ~@1.3]"
-.superimpose(
-  transpose(-12).late(0),
-  transpose(7).late(0.1),
-  transpose(10).late(0.2),
-  transpose(12).late(0.3),
-  transpose(24).late(0.4)
-)
-.scale(cat('C dorian', 'C mixolydian'))
-.scaleTranspose("<0 1 2 1>")
-.slow(2)`;
-
 export const zeldasRescue = `stack(
   // melody
   \`[B3@2 D4] [A3@2 [G3 A3]] [B3@2 D4] [A3] 
@@ -284,41 +157,35 @@ export const zeldasRescue = `stack(
     getDestination())
 )`;
 
-export const technoDrums = `stack(
+export const caverave = `const keys = x => x.s('sawtooth').cutoff(1200).gain(.5).attack(0).decay(0.5).sustain(.16).release(.8);
-  "c1*2".tone(new MembraneSynth().toDestination()),
-  "~ x".tone(new NoiseSynth().toDestination()),
-  "[~ c4]*2".tone(new MetalSynth().set({envelope:{decay:0.06,sustain:0}}).chain(new Gain(0.5),getDestination()))
-)`;
-
-export const caverave = `const delay = new FeedbackDelay(1/8, .4).chain(vol(0.5), out());
-const kick = new MembraneSynth().chain(vol(.8), out());
-const snare = new NoiseSynth().chain(vol(.8), out());
-const hihat = new MetalSynth().set(adsr(0, .08, 0, .1)).chain(vol(.3).connect(delay),out());
-const bass = new Synth().set({ ...osc('sawtooth'), ...adsr(0, .1, .4) }).chain(lowpass(900), vol(.5), out());
-const keys = new PolySynth().set({ ...osc('sawtooth'), ...adsr(0, .5, .2, .7) }).chain(lowpass(1200), vol(.5), out());
 
 const drums = stack(
-  "c1*2".tone(kick).mask("<x@7 ~>/8"),
+  s("bd*2").mask("<x@7 ~>/8"),
-  "~ <x!7 [x@3 x]>".tone(snare).mask("<x@7 ~>/4"),
+  s("~ <sd!7 [sd@3 x]>").mask("<x@7 ~>/4"),
-  "[~ c4]*2".tone(hihat)
+  s("[~ hh]*2").delay(.3).delayfeedback(.5).delaytime(.125)
 );
 
 const thru = (x) => x.transpose("<0 1>/8").transpose(-1);
 const synths = stack(
-  "<eb4 d4 c4 b3>/2".scale(timeCat([3,'C minor'],[1,'C melodic minor']).slow(8)).struct("[~ x]*2")
+  "<eb4 d4 c4 b3>/2".scale(timeCat([3,'C minor'],[1,'C melodic minor'])
+  .slow(8)).struct("[~ x]*2")
   .layer(
     scaleTranspose(0).early(0),
     scaleTranspose(2).early(1/8),
     scaleTranspose(7).early(1/4),
     scaleTranspose(8).early(3/8)
-  ).apply(thru).tone(keys).mask("<~ x>/16"),
+  ).apply(thru).note().apply(keys).mask("<~ x>/16"),
-  "<C2 Bb1 Ab1 [G1 [G2 G1]]>/2".struct("[x [~ x] <[~ [~ x]]!3 [x x]>@2]/2".fast(2)).apply(thru).tone(bass),
+  note("<C2 Bb1 Ab1 [G1 [G2 G1]]>/2".apply(thru))
-  "<Cm7 Bb7 Fm7 G7b13>/2".struct("~ [x@0.1 ~]".fast(2)).voicings().apply(thru).every(2, early(1/8)).tone(keys).mask("<x@7 ~>/8".early(1/4))
+  .struct("[x [~ x] <[~ [~ x]]!3 [x x]>@2]/2".fast(2))
+  .s('sawtooth').attack(0.001).decay(0.2).sustain(1).cutoff(500),
+  "<Cm7 Bb7 Fm7 G7b13>/2".struct("~ [x@0.1 ~]".fast(2)).voicings()
+  .apply(thru).every(2, early(1/8)).note().apply(keys)
+  .mask("<x@7 ~>/8".early(1/4))
 )
 stack(
   drums.fast(2), 
   synths
-).slow(2)`;
+).slow(2).out()`;
 
 export const callcenterhero = `const bpm = 90;
 const lead = polysynth().set({...osc('sine4'),...adsr(.004)}).chain(vol(0.15),out())
@@ -1029,4 +896,4 @@ stack(
     x?  ~ ~ x@3   ~ x |
     x?  ~ ~ x ~ x@3\`),
   roots.struct("x [~ x?0.2] x [~ x?] | x!4 | x@2 ~ ~ ~ x x x").transpose("0 7")
-).slow(2).pianoroll().note().piano().out();`;
+).slow(2).pianoroll().note().piano().out();`;