Happy News! The Free Music Archive, a project of indie freeform station WFMU, has downloads and streams galore, inspired by the ideas and ethos behind Creative Commons licensing, the tracks on the FMA are offered for whatever use you want. Use them to soundtrack your latest YouTube epic, remix them and release them, or download and share them with friends.

Visit the site : http://freemusicarchive.org/

The site also has a quality database of songs both live and recoded, selected by WFMU’s audio archivists and curators. The search functionality works really good, and can be re-sorted by genre, album, or other criteria

This is a social music website concept, so a sign-up is required.