I can recommend some music to you my friend. Besides Acoustic music, here are some songs I generally use to test my headphones. I hope you like them.
1. Flamenco Spanish guitar: ( great for testing mids)
2. Electronic art rock: (Excellent drums and bass for testing)
3.Celtic instrumental ( Instrument separation testing)
4.Progressive metal: ( The Holy Grail for testing )
Edited by Towwers - 10/14/12 at 2:31pm