// Update is called once per frame
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.A))
        {
            currentTrack = 0;

            CrossfadeScript.Crossfade(tracks[currentTrack], fadeTime);
        }

        if (Input.GetKeyDown(KeyCode.S))
        {
            currentTrack = 1;

            CrossfadeScript.Crossfade(tracks[currentTrack], fadeTime);
        }

        if (Input.GetKeyDown(KeyCode.D))
        {
            currentTrack = 2;

            CrossfadeScript.Crossfade(tracks[currentTrack], fadeTime);
        }
    }
 void Awake()
 {
     Instance = this;
 }