I have a dungeon maze and and a great ambiance looping file. I want to start the sound when you enter the zaze and have it continue playing until you leave the maze via the maze exit. (Once you are inside the maze you can't go back to previous rooms so I'm only concerned with one exit.)
For me, when I play sound, it plays the sound until I tell it to stop sound, regardless of the room the player is in. Are you using the desktop version?