diff --git a/single-voice-synth.js b/single-voice-synth.js
index ab74064..b849b93 100644
--- a/single-voice-synth.js
+++ b/single-voice-synth.js
@@ -3,6 +3,7 @@ class Synth {
     this.audioContext = audioContext;
     this.oscWaveType = waveType;
     this.oscFrequency = frequency;
+    this.isPlaying = false;
 
     // osc setup
     this.osc = this.audioContext.createOscillator();
@@ -18,6 +19,7 @@ class Synth {
 
   startOsc() {
     this.osc.start();
+    this.isPlaying = true;
   }
 
   stopOsc() {
@@ -30,6 +32,17 @@ class Synth {
     console.log(this.osc);
     this.osc.type = currentType;
     this.osc.frequency.setValueAtTime(currentFreq, this.audioContext.currentTime);
+    this.osc.connect(this.audioContext.destination);
+    this.isPlaying = false;
+  }
+
+  toggleOsc() {
+  
+    if (this.isPlaying === false) {
+      this.startOsc(); 
+    } else {
+      this.stopOsc();
+    }
   }
 }