diff --git a/packages/react/examples/nano-repl/src/App.jsx b/packages/react/examples/nano-repl/src/App.jsx
index f84356c7..086923ac 100644
--- a/packages/react/examples/nano-repl/src/App.jsx
+++ b/packages/react/examples/nano-repl/src/App.jsx
@@ -6,7 +6,6 @@ import {
   panic,
   webaudioOutput,
   registerSynthSounds,
-  registerZZFXSounds,
 } from '@strudel.cycles/webaudio';
 import { registerSoundfonts } from '@strudel.cycles/soundfonts';
 import { useCallback, useState } from 'react';
@@ -27,7 +26,7 @@ async function init() {
     import('@strudel.cycles/osc'),
   );
 
-  await Promise.all([loadModules, registerSynthSounds(), registerZZFXSounds(), registerSoundfonts()]);
+  await Promise.all([loadModules, registerSynthSounds(), registerSoundfonts()]);
 }
 init();
 
diff --git a/packages/superdough/synth.mjs b/packages/superdough/synth.mjs
index 02cf4c8a..57317133 100644
--- a/packages/superdough/synth.mjs
+++ b/packages/superdough/synth.mjs
@@ -21,21 +21,6 @@ const fm = (osc, harmonicityRatio, modulationIndex, wave = 'sine') => {
 };
 
 export function registerSynthSounds() {
-  ['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: () => {},
-      };
-    });
-  });
-
   ['sine', 'square', 'triangle', 'sawtooth'].forEach((wave) => {
     registerSound(
       wave,
diff --git a/packages/superdough/zzfx.mjs b/packages/superdough/zzfx.mjs
index a8ddf30b..352a88a2 100644
--- a/packages/superdough/zzfx.mjs
+++ b/packages/superdough/zzfx.mjs
@@ -1,4 +1,6 @@
 import { ZZFX } from 'zzfx';
+import { midiToFreq, noteToMidi } from './util.mjs';
+import { registerSound, getAudioContext } from './superdough.mjs';
 
 export const getZZFX = (value, t, duration) => {
   let {
@@ -27,8 +29,8 @@ export const getZZFX = (value, t, duration) => {
     note = noteToMidi(note); // e.g. c3 => 48
   }
   // get frequency
-  if (!freq && typeof n === 'number') {
-    freq = midiToFreq(n);
+  if (!freq && typeof note === 'number') {
+    freq = midiToFreq(note);
   }
   const shape = ['zsine', 'ztri', 'zsaw', 'ztan', 'znoise'].indexOf(s) || 0;
 
@@ -93,6 +95,7 @@ export const getZZFX = (value, t, duration) => {
 };
 
 export function registerZZFXSounds() {
+  console.log('registerZZFXSounds');
   ['zsine', 'zsaw', 'ztri', 'ztan', 'znoise'].forEach((wave) => {
     registerSound(wave, (t, value, onended) => {
       const duration = 0.2;
diff --git a/website/src/repl/prebake.mjs b/website/src/repl/prebake.mjs
index 6bdc5c0d..28678c9d 100644
--- a/website/src/repl/prebake.mjs
+++ b/website/src/repl/prebake.mjs
@@ -1,5 +1,5 @@
 import { Pattern, noteToMidi, valueToMidi } from '@strudel.cycles/core';
-import { registerSynthSounds, samples } from '@strudel.cycles/webaudio';
+import { registerSynthSounds, registerZZFXSounds, samples } from '@strudel.cycles/webaudio';
 import './piano.mjs';
 import './files.mjs';
 
@@ -8,6 +8,7 @@ export async function prebake() {
   // License: CC-by http://creativecommons.org/licenses/by/3.0/ Author: Alexander Holm
   await Promise.all([
     registerSynthSounds(),
+    registerZZFXSounds(),
     //registerSoundfonts(),
     // need dynamic import here, because importing @strudel.cycles/soundfonts fails on server:
     // => getting "window is not defined", as soon as "@strudel.cycles/soundfonts" is imported statically