Breath of Fire 2 SPC hacking

If all your trying to do is change the song, and it is switched by an event that is most likely saved with your game...

Final Fantasy VI has "entrance events" on maps, which basically check for certain conditions to be true or false. Based on those checks, certain NPC's, or certain songs are loaded. For example, before kefka kills leo in thamasa, the map of thamasa does not show the grave. After he is killed, when entering thamasa, a new map is loaded, with the grave part. If you are in the WOR, yet another map is loaded.

If we could ever say that FF6 and Breath of Fire 2 were coded in a similar way, then there could be an entrance event for the world map that changes songs based on the progress of the game? Just a theory.