Here's a few that I find sonically pleasing and revealing of system performance, and are also just plain good music.
Govi: Guitar Odyssey
Mars Lasar: Eleventh Hour
Dire Straights: Dire Straights
Paul Simon: Graceland
Govi: Guitar Odyssey
Mars Lasar: Eleventh Hour
Dire Straights: Dire Straights
Paul Simon: Graceland