Error CS1519 when trying to run project?

I want my BGM not to reset every time the scene changes so I was using the C# code from this link:

http://answers.unity3d.com/questions/11314/audio-or-music-to-continue-playing-between-scene-c.html

But when I try to run the code I get "error CS1519: unexpected symbol ' (' in class, struct, or interface member declaration". I realize this is probably just a missing semicolon or something but I'd appreciate any help because I am thoroughly stuck.

 using UnityEngine;
 using System.Collections;
 
 public class MyUnitySingleton : MonoBehaviour 
 {
 
     public AudioSource musicSource;
     private static MyUnitySingleton instance = null;
     public static MyUnitySingleton Instance {
         get { return instance; }
     }
     void Awake() 
     {
         if (instance != null && instance != this) 
         {
             Destroy(this.gameObject);
             return;
         } else 
         {
             instance = this;
         }
         DontDestroyOnLoad(this.gameObject);
     }
 
     musicSource.Play ();
 }