Free Music Achive

As educators we occasionally need music or sounds in our productions. However, it can be difficult to navigate in the copyright jungle at the Internet. Free Music Archive is an online music library of music you can download without worrying about whether you are breaking the law. All artists who have uploaded music on "FMA", let you use their music as you want, as long as it isn't for commercial use, and you remember to credit the artist (typing the name of the artist somewhere in the production).

http://freemusicarchive.org/