It would be nice if they brought back the old music, but you could only hear it if you log into the game after a long time, or after an update or reinstallation. And it only works once, because when you exit the game, everything resets and the current music returns. (This started happening around the time they added the new candy sounds and the new music.) Here's a picture from when I started listening to old music again after not listening to it for a long time.
