Yes, I know Corvo can't have this music, but if he could, what music would he have?

The black halo - Kamelot
http://www.youtube.com/watch?v=uhtW3jZjS9g&feature=related

Within me - Lacuna Coil
http://www.youtube.com/watch?feature=iv&annotation_id=annotation_530502&v=_4ybHljWiYk&src_vid=rGSgOF020C8

Cruel man - Intwine
http://www.youtube.com/watch?v=NPn_kVPjpeU

Owned - Ms.Direction
http://www.youtube.com/watch?v=XZ5TajZYW6Y

Monster - Paramore
http://www.youtube.com/watch?v=PoTEnaAI9Fo&ob=av2e

Lifelike - Karnivool
http://www.youtube.com/watch?v=WK-tZvcE8N4

I'd imagine Corvo listens to a lot of classical music like chopin nocturne op.9 no.2

How about "In the Hall of the Mountain King"? Seems Corvo-ish. We don't know much yet.