Thanks, I used this to change the ambient music a little bit ago.
Now the music from the Rebuilt Jedi Enclave plays in the Trayus Core!
I think what I was looking for is in the scripts, though. When you get lightside points, the game plays the Force Theme. I'd like to change it so that it plays mus_s_lightshort instead.
I'd be like something like the Lightside Transition Music Mod by stingerhs.
I'm not sure where to find where the assets I need to change, though.