sked/Assets/Script/Common/Sound/SoundPlayer_BGM.cs

using DG.Tweening;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class SoundPlayer_BGM : MonoBehaviour
{
    [Space(10)]
    public SoundPlayer intro;
    public SoundPlayer loop;
    [Space(10)]
    public SoundPlayer bgm;
    public void Play()
    {
        if(SoundManager.Instance.bgm != null)
        {
            if (SoundManager.Instance.bgm.audioSource.clip == intro.audioSource.clip || SoundManager.Instance.bgm.audioSource.clip == loop.audioSource.clip)
                return;
        }

        if (intro != null)
        {
            bgm = SoundManager.Instance.BGMPlay(intro.gameObject, true, () =>
            {
                StopAllCoroutines();
            });
            StartCoroutine(Intro());
        }
        else
            SoundManager.Instance.BGMPlay(loop.gameObject, true);
    }
    IEnumerator Intro()
    {
        while (bgm.audioSource.isPlaying)
            yield return null;

        SoundManager.Instance.BGMPlay(loop.gameObject, true);
    }
}