The Open Audio License is a free music license, created in 2001 by the Electronic Frontier Foundation (EFF).  It provides freedom and openness of use for music and other expressive works. The EFF now encourages artists to use the Creative Commons Attribution-ShareAlike License Open License, and it “designates the Creative Commons Attribution-ShareAlike License as a version 2.0 of the Open Audio License.” 
Publication of the first release of the Open Audio License spurred the establishment of the original Open Music Registry to Provide Support the license and a directory for finding works released under the license.
- Jump up^ Robin D. Gross (August 2001). “Artists & Audiences Strike a New Deal with Open Licensing of Music” . Electronic Frontier Foundation . Archived from the original on 24 August 2004 . Retrieved 12 July 2013 .
- Jump up^ “EFF Open Audio License: Version 2.0” . Electronic Frontier Foundation . June 2004. Archived from the original on June 2, 2004 . Retrieved 12 July 2013 .