I listen to Pandora a lot. In case you haven't heard of it, it is a free online music player where you create a "station" for a certain band or song. Pandora then plays music from that band and other artists like it. Recently I tried typing "Skyrim" into the search bar, and was surprised that it actually worked! There is a station on Pandora that lets you listen to Skyrim music, as well as a lot of other great game and movie music.
Check it out!