diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..ba93500711 100644
--- a/01 - JavaScript Drum Kit/index-START.html
+++ b/01 - JavaScript Drum Kit/index-START.html
@@ -1,10 +1,12 @@
+
JS Drum Kit
+
@@ -57,10 +59,35 @@
-
+ audio.currentTime = 0;
+ audio.play();
+ key.classList.add('playing');
+
+ // console.log('key:', key);
+ // console.log('audio:', audio);
+
+ };
+
+ function removeTransition(e) {
+ if (e.propertyName !== 'transform') return;
+ this.classList.remove('playing');
+ // console.log('this : ', this);
+ };
+
-
+
+