diff --git a/src/index.js b/src/index.js
index 2f8d4fc..d56b831 100644
--- a/src/index.js
+++ b/src/index.js
@@ -128,10 +128,14 @@ AudioPlayer.prototype.waitForBeats = function (beats) {
     return new Promise(function (resolve) {
         setTimeout(function () {
             resolve();
-        }, ((60 / storedContext.audioEngine.currentTempo) * 1000  * beats));
+        }, storedContext.beatsToSec(beats) * 1000);
     });
 };
 
+AudioPlayer.prototype.beatsToSec = function (beats) {
+    return (60 / this.audioEngine.currentTempo) * beats;
+};
+
 AudioPlayer.prototype.stopAllSounds = function () {
     // stop drum notes
     // for (var i = 0; i<this.drumSamplers.length; i++) {