diff --git a/repl/src/tone.ts b/repl/src/tone.ts
index 8732342e..3bcc11fa 100644
--- a/repl/src/tone.ts
+++ b/repl/src/tone.ts
@@ -44,7 +44,7 @@ Pattern.prototype.tone = function (instrument) {
           break;
         case 'Piano':
           note = getPlayableNoteValue(event);
-          instrument.keyDown({ note, time, velocity: 0.5 });
+          instrument.keyDown({ note, time, velocity });
           instrument.keyUp({ note, time: time + event.duration, velocity });
           break;
         case 'Sampler':