I enjoy all kinds of music and I'd like to thank the numerous posters in this thread for enlightening me on various new bands.

As for my two cents, the composer I would recommend is Ryo Kunihiko. He is the only composer I listen to while I work on my art. His beautiful and melodic style has kept this Hothead from tearing up many a drawing when the lines weren't going my way.

Suggested songs:

Forgotten Sorrow
http://www.youtube.com/watch?v=4wg3i2xUjZg

Song of Moonlight
http://www.youtube.com/watch?v=MjL7DjtbcO4&feature=related

Lastly as a wild card; Whenever I am feeling a little down or depressed this song'll always get me back up on my feet.

It's Another Day
http://www.youtube.com/watch?v=FeqCB9vV_QM&feature=related