Music Player

I'm guessing that replacing 24 with FF makes the basic battle formation song play whatever you've chosen in the music box menu. Is that what you are suggesting?

This just skip the battle theme and continue playing whatever song was playing before battle. I thought this is what you wanted.

What I was proposing was that in addition to playing in the menu the song would continue in play when you exit the menu and into battle until it was cued to change up by either entering a new area or until cued to change based on an event or battle with a special musical theme. Does this make sense?

This proposition assume you use the music player on the world map. It could be done by coding additional exceptions outside the music player code but I don't see it as a flexible option, relying on specific song IDs... It could also be done with a bit check but I'm not planning to add such a feature.