Disable BGM in FFT?

[FelixFlywheel]

I'm trying to figure out if it's possible to disable the BGM in FFT's battles (but not the SFX).
Why?  Well, I want to rip the magic spell sounds and use 'em on RPG Maker!!! 

I've ALWAYS dreamed of hearing the sounds that Silf makes without that background music... Let's hope my dream can come true.  >_>;

-Felix

[Vanya]

There's an ASM hack for that:
http://ffhacktics.com/smf/index.php?topic=953.0