Bet you thought you'd never see the day!
This is just a simple byte swap for a few locations (Party Screen, Memory Card Menu, Shop, Fur Shop, Soldier's Office) that allows you to change what song you want to play there. The defaults set for each are the correct songs for them in vanilla. Refer to the ID's listed here: https://ffhacktics.com/wiki/Songs
I'm still working on tracking down the right locations for the bytes for the World Map, Brave Story, Tutorial, and Battle Formation screen.
More hacks to come maybe??? Find out next time on FFHacktics!