02-morph-in.mp3 = Morph Inp
06-switch.mp3 = Switchi
07-corpus-dei.mp3 = Corpus Deiu
10-me-versus-the-underworld.mp3 = Me Versus the Underworldh
11-kill-my-boss.mp3 = Kill My Bossm
15-electrodriving.mp3 = Electrodrivingo
Unless "PIUHMO" is a secret message.
EDIT: "Playing Tarot"'s artist is given as Original Sonudtrack
EDIT2: And the files don't have images in their tags (unlike, say, Gothic [II] Gold's OST).