Choral Public Domain LibraryBegun in December 1998, CPDL is one of the world's largest free sheet music sites. The goal of CPDL is to host a large collection of music scores and other supporting files (such as midi or other sound files) which can be freely downloaded and used. Most of the scores on CPDL are modern editions based on older works whose copyright has lapsed (or which are otherwise in the public domain), but some scores are newly composed and offered for download by the composer.