Besides our collection of free royalty free music available for commercial use here:
Free Royalty Free Music, here is a collection of “Copyright Free” music clips from Josh Levine available free for any type of use as long as you credit. I doubt they are actually “copyright free” as that would mean that Josh no longer owns them and he would not be able to request a credit for them. I’m pretty sure he means “royalty free”.
There are 19 tracks in this collection of varying quality. With titles like “One Hour Garageband Tune #1” you might get an idea of how they were recorded.
Worth checking out though:
http://www.century22.org/mp3/