diff --git a/packages/osc/osc.mjs b/packages/osc/osc.mjs
index 3baefb0f..932e803d 100644
--- a/packages/osc/osc.mjs
+++ b/packages/osc/osc.mjs
@@ -7,9 +7,12 @@ const latency = 0.1;
 
 Pattern.prototype.osc = function () {
   return this._withEvent((event) => {
-    const onTrigger = (time, event, startedAt) => {
+    const onTrigger = (time, event, currentTime) => {
+      // time should be audio time of onset
+      // currentTime should be current time of audio context (slightly before time)
       const keyvals = Object.entries(event.value).flat();
-      const ts = Math.floor(startedAt + (time + latency) * 1000);
+      const offset = (time - currentTime + latency) * 1000;
+      const ts = Math.floor(Date.now() + offset);
       const message = new OSC.Message('/dirt/play', ...keyvals);
       const bundle = new OSC.Bundle([message], ts);
       bundle.timestamp(ts); // workaround for https://github.com/adzialocha/osc-js/issues/60
diff --git a/repl/src/useCycle.mjs b/repl/src/useCycle.mjs
index 9c5f16c4..908193f9 100644
--- a/repl/src/useCycle.mjs
+++ b/repl/src/useCycle.mjs
@@ -10,8 +10,6 @@ import { State, TimeSpan } from '@strudel.cycles/core';
   ready?: boolean; // if false, query will not be called on change props
 } */
 
-export let startedAt;
-
 // function useCycle(props: UseCycleProps) {
 function useCycle(props) {
   // onX must use useCallback!
@@ -44,7 +42,7 @@ function useCycle(props) {
       ?.filter((event) => event.part.begin.equals(event.whole.begin))
       .forEach((event) => {
         Tone.getTransport().schedule((time) => {
-          onEvent(time, event, startedAt);
+          onEvent(time, event, Tone.getContext().currentTime);
           Tone.Draw.schedule(() => {
             // do drawing or DOM manipulation here
             onDraw?.(time, event);
@@ -59,10 +57,7 @@ function useCycle(props) {
 
   const start = async () => {
     setStarted(true);
-    if (!startedAt) {
-      await Tone.start();
-      startedAt = Date.now() - Tone.getContext().currentTime * 1000;
-    }
+    await Tone.start();
     Tone.getTransport().start('+0.1');
   };
   const stop = () => {
diff --git a/repl/src/useRepl.mjs b/repl/src/useRepl.mjs
index ce823f9b..061cd2f3 100644
--- a/repl/src/useRepl.mjs
+++ b/repl/src/useRepl.mjs
@@ -27,7 +27,7 @@ function useRepl({ tune, defaultSynth, autolink = true, onEvent, onDraw }) {
   const cycle = useCycle({
     onDraw,
     onEvent: useCallback(
-      (time, event, startedAt) => {
+      (time, event, currentTime) => {
         try {
           onEvent?.(event);
           const { onTrigger, velocity } = event.context;
@@ -41,7 +41,7 @@ function useRepl({ tune, defaultSynth, autolink = true, onEvent, onDraw }) {
             /* console.warn('no instrument chosen', event);
           throw new Error(`no instrument chosen for ${JSON.stringify(event)}`); */
           } else {
-            onTrigger(time, event, startedAt);
+            onTrigger(time, event, currentTime);
           }
         } catch (err) {
           console.warn(err);