I decided to test if I could prevent the trouble music in mmbn6 so I saved before the troublr started, which created a GLITCH. The glitch is everyone is where they are when you saved! They don't return to where they were or to where ty're supposed to go when you finish the game!!! I saved before I entered the main pavilion, Everyone is still looking around like they were when they saved!
No way aside from using gameshark to alter the music. As far as I know, anyway.