I'm a hobbyist composer from Finland and have published music under Creative Commons licence for a few years now. All of my published works can be found hosted on french CC music forum Jamendo. Here are a few sample tunes that give quite good idea regarding the quality and style:http://www.saunalahti.fi/mattpaa/temp/crono.mp3http://www.saunalahti.fi/mattpaa/temp/epic.mp3http://www.saunalahti.fi/mattpaa/temp/pirates.mp3
Here are the project homepages:http://www.jamendo.com/artist/celestial.aeon.projecthttp://www.jamendo.com/artist/project.divinityhttp://www.jamendo.com/artist/frozen.silence
If creative commons licence is too restrictive, Jamendo offers dynamically priced commercial licencing options as well, prices start from a only few euros, so even zero-budget commercial projects can find reasonable options there.
Hope you find some useable material!