Breath of Fire 2 SPC hacking

I haven't read the entire post, however, if it were me attempting to do this (keep in mind I'm a hex noob and fairly simple minded) I would attemp to find a direct game rip music (spc file? not sure, but the 5 minutes of google looking led me to believe it was straight from the snes version) find the song you want, and the song you want to replace get the hex code for both songs, search for the second one in your rom, and replace it with the first one.

Need I say again, I'm a noob and tend favor the straight forward "get a bigger hammer" approach when able, so I don't know if this would fail miserably or even start. The concept though is simple, if you can't find the offsets look for the code itself. Shouldn't be more than one instance of the song, might not be pretty, but would be something to poke at for a few hours and there is a slim chance in aprox 3,720 that it might work...