Incompetech Music

Amazing music licensed as CC BY. Much of this music is available in the YouTube Video Editor, too. A huge array of music genres.

http://incompetech.com/music/royalty-free/music.html

Thenormal default search can access every piece in the catalog. You can narrow your search on genre, feel, tempo, or length… or use the custom Google Search for anything else! For example, you can type in “Banjo” to find anything with a banjo in it.