GBA2MIDI is now deprecated

I removed my gba music tool from download page, because it has some conversion bugs and it will never get updated.

Today, there are some nice tools which can replace old gba2midi tool. I recommend GBAMusRiper, which can convert GBA sound into MID and SF2. Moreover, you can download the source code.

Their source codes are good reference for understanding MusicPlayer2000. Enjoy your reverse engineering life.