Tracks contained within this site are covered by CC licenses. Click the link in the "Looking for music?" section of the page to look for music and go to dig.ccMixter to find free music for film & video, commercial projects, and games. Please attribute the music you use.
This site provides access to public domain choral sheet music as well as some contemporary works where the composer wished to share scores for download. Please be sure to verify the copyright status of works you wish to use.
Search and browse the collection of live concerts. "All music in this collection is from trade-friendly artists who have opted in and is strictly non-commercial, both for access here and for any further distribution."
The collection "onsists of over 47,000 pieces of sheet music registered for copyright during the years 1870 to 1885. Included are popular songs, piano music, sacred and secular choral music, solo instrumental music, method books and instructional materials, and music for band and orchestra." Most of the content should be in the public domain, but you need to verify it.
"The Public Domain Information Project was organized in 1986 to provide information about public domain music. We provide carefully researched lists of Public Domain Music titles, PD Sheet Music Reprints and PD Sheet Music Books."