I had found one site that had royalty free music, where you could use the music for free for non-commercial use and they only ask that you credit the author with a link back to the author's page.
That site is:
http://freemusicarchive.org/Then today, someone showed me this site. I'm in love
. Please, please consider giving a small donation if you use some of this music for any reason. I plan to make a new riding cd compilation (about an hour long) and will most certainly give a donation for doing so. Lots of great "soundtrack" type of music here. You can browse by genre or by "feel". It's a treasure!
http://incompetech.com/m/c/royalty-free ... Soundtrack