I found some more free royalty free music clips today available from Purple Planet.
They have a variety of genres available like calm, dramatic, jazzy, blues, mystery, horror and comic.
Their website states:
"All the music here can be used essentially for free (though we appreciate a small donation) for any type of film production or web presentation (youtube, podcasts, blogs etc). This includes revenue-generating, commercial uses."
Check them out if you need free music, it all sounds pretty good.