IEnumerator changeSongTime(songIndex si, float wait)
{
songDown.TransitionTo(wait);
yield return(new WaitForSeconds(wait));
song.enabled = false;
song.clip = songClips[(int)si];
songUp.TransitionTo(wait);
}
void changeSong(songIndex si, float wait)
{
StartCoroutine(changeSongTime(si, wait));
}