Thirteen fantastic places to find background mu... SoundCli.ps. Free music. Music. Open source multimedia. Open Music and Open Source Sound Repositories The Freesound Project - Open source sound effects of every type imaginable, searching by tag on the left is the easiest way to find things, you have to register and logged in to use them but it’s free, you can preview all of the clips in the browser before downloading.
Sound Bible offers thousands of copyright free sound effects, sound clips, and straight up sounds, they consist of Creative Commons and Public Domain works. Magnatune - Full access to 1200+ albums unlimited music downloads in a variety of MP3 and lossless formats as well as unlimited online music streaming. Your Magnatune membership makes it easy and legal to stream music at work, listen to downloaded music on your MP3 player, and burn CDs at home.
IMSLP Petrucci Music Library - This is a resource where you can search public domain and licensed sheet music. Purple Planet Royalty Free Music is a nice source for fun, easy to use, royalty-free music for projects. Dig.ccmixter. Sound Effects.