Soul Calibur II Zelda arrange
 

Does anybody know who to credit this ridiculously good Zelda theme arrange to? It sounds like Junichi Nakatsuru's work, but I could be wrong.

The game's staff roll says:

Music Production
Junichi Nakatsuru
Additional Music Production
Asuka Sakai

As with pretty much any game, no exact song credits. "Additional Music Production" could mean that Sakai helped Nakatsuru or that he did just some tracks, or that he did exactly the track you were asking for, as it should be classified as "additional (GameCube exclusive) music". Take the possibility you like most. ^_~

Well, Soul Calibur II's soundtrack was actually composed by Asuka Sakai, Junichi Nakatsuru, Rio Hamamoto, and Yoshihito Yano, with a song by Junichi Takagi and a song by Ryuichi Takada. Plenty of people were involved with the music, so it's kind of hard to just arbitrarily pick one to credit.