This is very cool. Someone (who goes by the username “freay” on 8tracks.com) has made a collection of music playlists that reflect or relate to a character. I think this is a great way to explore what a character means to you, and helps to dissect them in terms of the mood they generate, their inner ambitions and personality, what they represent and what their tastes would be. This is my personal favourite: Amelia (based on Amelia Pond from the Doctor Who series). Perhaps this is something I will try to do myself?
(Photo credit goes to levicorpis.tumblr.com)