Musopen is a non-profit dedicated to providing copyright free music content: music recordings, sheet music and a music textbook. This project will use your donations to purchase and release music to the public domain. Right now, if you were to buy a CD of Beethoven's 9th symphony, you would not be legally allowed to do anything but listen to it. You wouldn't be able to share it, upload it, or use it as a soundtrack to your indie film- yet Beethoven has been dead for 183 years and his music is no longer copyrighted. There is a lifetime of music out there, legally in the public domain, but it has yet to be recorded and released to the public.
This is a brilliant idea. Count me in.