Randomly mp3 sript, playing just first song

Hi, please help me with this i don't know what i'm doing bad. I'm trying to make music, that play randomly, but i don't know how to do that. Thanks.

 using UnityEngine;
 using System.Collections;
 
 public class Music : MonoBehaviour {
 
     public Object[] myMusic; // declare this as Object array
     void Awake () {
         myMusic = Resources.LoadAll("Music",typeof(AudioClip));
         GetComponent<AudioSource>().clip = myMusic[0] as AudioClip;
     }
     
     void Start (){
         GetComponent<AudioSource>().Play ();
     }
     
     // Update is called once per frame
     void Update () {
         if(!GetComponent<AudioSource>().isPlaying)
             playRandomMusic();
     }
     
     void playRandomMusic() {
         GetComponent<AudioSource>().clip = myMusic[Random.Range(0,myMusic.Length)] as AudioClip;
         GetComponent<AudioSource>().Play();
     }
 }