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| Type of site | Music score library | 
|---|---|
| Available in | English | 
| URL | www | 
| Commercial | No | 
| Registration | No | 
| Launched | 2000 | 
| Content license | Creative Commons Attribution / Share-Alike [1] | 
The Mutopia Project is a volunteer-run effort to create a library of free content sheet music, in a way similar to Project Gutenberg's library of public domain books. It started in 2000. [2]
The music is reproduced from old scores that are in the public domain. New scores are digitally typeset with GNU LilyPond and distributed in the following formats:
As of 2024 [update] , there are 2124 pieces of music available, over a third of which are for piano. [3]