(SNES) Music bank modiffiers help needed

[nensondubois]

I already know how to use a debugger (for the most part) to make music modifiers while keeping the game playing. I do know some 65816, and SPC700 but my problem is that when I make a music modifier for a game, the music is split across two or three banks depending on game. I'll use Zelda 3 as an example: I have a working music modifier: 00012C?? for Game Genie and or 7E012D?? for PAR. (?? is the selected track to be played within set the bank) So, where do I go from here?