diff --git a/packages/react/examples/nano-repl/src/App.jsx b/packages/react/examples/nano-repl/src/App.jsx
index 086923ac..f84356c7 100644
--- a/packages/react/examples/nano-repl/src/App.jsx
+++ b/packages/react/examples/nano-repl/src/App.jsx
@@ -6,6 +6,7 @@ import {
   panic,
   webaudioOutput,
   registerSynthSounds,
+  registerZZFXSounds,
 } from '@strudel.cycles/webaudio';
 import { registerSoundfonts } from '@strudel.cycles/soundfonts';
 import { useCallback, useState } from 'react';
@@ -26,7 +27,7 @@ async function init() {
     import('@strudel.cycles/osc'),
   );
 
-  await Promise.all([loadModules, registerSynthSounds(), registerSoundfonts()]);
+  await Promise.all([loadModules, registerSynthSounds(), registerZZFXSounds(), registerSoundfonts()]);
 }
 init();
 
diff --git a/packages/superdough/helpers.mjs b/packages/superdough/helpers.mjs
index ddd94fca..7cc54c8d 100644
--- a/packages/superdough/helpers.mjs
+++ b/packages/superdough/helpers.mjs
@@ -1,5 +1,4 @@
 import { getAudioContext } from './superdough.mjs';
-import { ZZFX } from 'zzfx';
 
 export function gainNode(value) {
   const node = getAudioContext().createGain();
@@ -7,98 +6,6 @@ export function gainNode(value) {
   return node;
 }
 
-export const getZZFX = (value, t, duration) => {
-  let {
-    s,
-    note = 36,
-    freq,
-    //
-    randomness = 0,
-    attack = 0,
-    decay = 0,
-    sustain = 0.8,
-    release = 0.1,
-    shapeCurve = 1,
-    slide = 0,
-    deltaSlide = 0,
-    pitchJump = 0,
-    pitchJumpTime = 0,
-    repeatTime = 0,
-    noise = 0,
-    modulation = 0,
-    bitCrush = 0,
-    delay = 0,
-    tremolo = 0,
-  } = value;
-  if (typeof note === 'string') {
-    note = noteToMidi(note); // e.g. c3 => 48
-  }
-  // get frequency
-  if (!freq && typeof n === 'number') {
-    freq = midiToFreq(n);
-  }
-  const shape = ['zsine', 'ztri', 'zsaw', 'ztan', 'znoise'].indexOf(s) || 0;
-
-  const params = [
-    1, // volume
-    randomness, // randomness
-    freq,
-    attack,
-    duration, // sustain time
-    release,
-    shape,
-    shapeCurve,
-    slide,
-    deltaSlide,
-    pitchJump,
-    pitchJumpTime,
-    repeatTime,
-    noise,
-    modulation,
-    bitCrush,
-    delay,
-    sustain, // sustain volume!
-    decay,
-    tremolo,
-  ];
-  const paramOrder = [
-    'volume',
-    'randomness',
-    'frequency',
-    'attack',
-    'sustain',
-    'release',
-    'shape',
-    'shapeCurve',
-    'slide',
-    'deltaSlide',
-    'pitchJump',
-    'pitchJumpTime',
-    'repeatTime',
-    'noise',
-    'modulation',
-    'bitCrush',
-    'delay',
-    'sustainVolume',
-    'decay',
-    'tremolo',
-  ];
-
-  const readableParams = Object.fromEntries(paramOrder.map((param, i) => [param, params[i]]));
-  console.log(readableParams);
-
-  const samples = ZZFX.buildSamples(...params);
-  const context = getAudioContext();
-  const buffer = context.createBuffer(1, samples.length, context.sampleRate);
-  buffer.getChannelData(0).set(samples);
-  const source = getAudioContext().createBufferSource();
-  source.buffer = buffer;
-  source.start(t);
-  return {
-    node: source,
-  };
-};
-
 export const getOscillator = ({ s, freq, t }) => {
   // make oscillator
   const o = getAudioContext().createOscillator();
diff --git a/packages/superdough/index.mjs b/packages/superdough/index.mjs
index b795539a..e5d4498b 100644
--- a/packages/superdough/index.mjs
+++ b/packages/superdough/index.mjs
@@ -8,4 +8,5 @@ export * from './superdough.mjs';
 export * from './sampler.mjs';
 export * from './helpers.mjs';
 export * from './synth.mjs';
+export * from './zzfx.mjs';
 export * from './logger.mjs';
diff --git a/packages/superdough/zzfx.mjs b/packages/superdough/zzfx.mjs
new file mode 100644
index 00000000..a8ddf30b
--- /dev/null
+++ b/packages/superdough/zzfx.mjs
@@ -0,0 +1,110 @@
+import { ZZFX } from 'zzfx';
+
+export const getZZFX = (value, t, duration) => {
+  let {
+    s,
+    note = 36,
+    freq,
+    //
+    randomness = 0,
+    attack = 0,
+    decay = 0,
+    sustain = 0.8,
+    release = 0.1,
+    shapeCurve = 1,
+    slide = 0,
+    deltaSlide = 0,
+    pitchJump = 0,
+    pitchJumpTime = 0,
+    repeatTime = 0,
+    noise = 0,
+    modulation = 0,
+    bitCrush = 0,
+    delay = 0,
+    tremolo = 0,
+  } = value;
+  if (typeof note === 'string') {
+    note = noteToMidi(note); // e.g. c3 => 48
+  }
+  // get frequency
+  if (!freq && typeof n === 'number') {
+    freq = midiToFreq(n);
+  }
+  const shape = ['zsine', 'ztri', 'zsaw', 'ztan', 'znoise'].indexOf(s) || 0;
+
+  const params = [
+    1, // volume
+    randomness, // randomness
+    freq,
+    attack,
+    duration, // sustain time
+    release,
+    shape,
+    shapeCurve,
+    slide,
+    deltaSlide,
+    pitchJump,
+    pitchJumpTime,
+    repeatTime,
+    noise,
+    modulation,
+    bitCrush,
+    delay,
+    sustain, // sustain volume!
+    decay,
+    tremolo,
+  ];
+  const paramOrder = [
+    'volume',
+    'randomness',
+    'frequency',
+    'attack',
+    'sustain',
+    'release',
+    'shape',
+    'shapeCurve',
+    'slide',
+    'deltaSlide',
+    'pitchJump',
+    'pitchJumpTime',
+    'repeatTime',
+    'noise',
+    'modulation',
+    'bitCrush',
+    'delay',
+    'sustainVolume',
+    'decay',
+    'tremolo',
+  ];
+
+  const readableParams = Object.fromEntries(paramOrder.map((param, i) => [param, params[i]]));
+  console.log(readableParams);
+
+  const samples = ZZFX.buildSamples(...params);
+  const context = getAudioContext();
+  const buffer = context.createBuffer(1, samples.length, context.sampleRate);
+  buffer.getChannelData(0).set(samples);
+  const source = getAudioContext().createBufferSource();
+  source.buffer = buffer;
+  source.start(t);
+  return {
+    node: source,
+  };
+};
+
+export function registerZZFXSounds() {
+  ['zsine', 'zsaw', 'ztri', 'ztan', 'znoise'].forEach((wave) => {
+    registerSound(wave, (t, value, onended) => {
+      const duration = 0.2;
+      const { node: o } = getZZFX({ s: wave, ...value }, t, duration);
+      o.onended = () => {
+        o.disconnect();
+        onended();
+      };
+      return {
+        node: o,
+        stop: () => {},
+      };
+    });
+  });
+}