[Solved] Help with my music manager

Hello All! I am working on my first game and got stuck. I am trying to figure out how to change the music depending on what level world the level is in. I currently have this code which keeps the music playing in between scenes. Any help I get will be greatly appreciated

 using UnityEngine;
 using System.Collections;
 
 public class MusicManager : MonoBehaviour 
 {
     private static MusicManager _instance;
     
     public static MusicManager instance
     {
         get
         {
             if(_instance == null)
             {
                 _instance = GameObject.FindObjectOfType<MusicManager>();
                 
                 //Tell unity not to destroy this object when loading a new scene!
                 DontDestroyOnLoad(_instance.gameObject);
             }
             
             return _instance;
         }
     }
     
     void Awake() 
     {
         if(_instance == null)
         {
             //If I am the first instance, make me the Singleton
             _instance = this;
             DontDestroyOnLoad(this);
             this.gameObject.audio.Play ();
         }
         else
         {
             //If a Singleton already exists and you find
             //another reference in scene, destroy it!
             if(this != _instance)
                 Destroy(this.gameObject);
         }
     }
     
     public void Play()
     {
         //Play some audio!
         this.gameObject.audio.Play ();
     }
 }