Outside of YouTube, everywhere I look for this I only find rips of the SNES version, which don't interest me at all. Does anyone have the soundtrack for the Game Boy version?

Zophar's Domain seems to host a "Music file" of the GB version (.gbs format) (http://www.zophar.net/music/gbs/tetris-attack-[yoshi-no-panepon].html); never played the game, personally, I can't tell if it is the complete thing.

I have no doubt it is, but I'd really like it in audio files rather than just emulable data. I'll turn that into MP3s myself if I need to.