Description of the music system in War3

Is there any tutorial abbout the music system in War3? I'd like to know more about the behavior of Play Music, Stop Music and music lists.

For example, I am getting this weird bug when I try to use Stop Music at the end of a cutscene. The track seems to stop, but it then starts again from the beginning.

I havent seen a pause function, and im too lazy to find it out for now. As far as i know Stop will make it stop and then be played from beginning again.