How to play audio after enabling a GameObject for the second time?

I make an simple AR concert, I have a reset button and when the user click it the singer will dissappear (GameObject.setActive(false)). However, when I clicked the play button again, the audio source not giving any sound. How I handle it ? I’ve initialized in my Start() function.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class MikuController : MonoBehaviour {

	public GameObject self;
	public Button resetButton;
	private AudioSource musicAudio;
	private Vector3 startPos;

	// Use this for initialization
	void Start () {
		startPos = transform.position;

		musicAudio = GetComponent<AudioSource> ();
		musicAudio.Play ();

		resetButton.onClick.AddListener (reset);
	// Update is called once per frame
	void Update () {

	void reset() {
		/* stop all music */
		musicAudio.Stop ();

		/* set gameobject to inactive */
		self.SetActive (false);

Hey mate,
You’ll want to move anything that you want to happen after enabling into onEnable. Start only runs once.

void OnEnable()
musicAudio.Play ();

Use Awake() instead of Start() so each time you reactivate the object it’s calling that code.