diff --git a/basic.html b/basic.html
index 8ac0ba7..737693b 100644
--- a/basic.html
+++ b/basic.html
@@ -76,6 +76,7 @@
     <div style="padding: 15px">
       <button id="start">Start</button>
       <button id="stop">Stop</button>
+      <button id="arp">Arp</button>
     <div style="padding: 10px;">
       <label for="gain">Volume</label>
       <input id="gain" type="range" min="0" max=".1" value=".05" step=".001"/>
diff --git a/basic.js b/basic.js
index 10c9897..036de6e 100644
--- a/basic.js
+++ b/basic.js
@@ -130,4 +130,16 @@ window.onload = function () {
     osc.stop();
     osc = null;
   });
+
+  document.getElementById("arp").addEventListener("click", () => {
+    const notes = ["C", "D", "E", "F", "G", "A", "B"];
+    for (let i = 0; i < notes.length; i++) {
+      setTimeout(2000);
+      console.log(notes[i]);
+      osc.frequency.setValueAtTime(
+        noteToHz(notes[i]),
+        audioContext.currentTime
+      );
+    }
+  });
 };