The International Music Score Library Project (IMSLP), also known as the Petrucci Music Library, is a crowdsourced database of public domain music scores. Driven by a belief that “music should be something that is easily accessible to everyone,” the site was created in 2006 with a goal of creating an exhaustive collection of music scores that are not under copyright. Today, over 390,000 scores are freely available to download from IMSLP, representing approximately 119,000 works by over 15,000 composers.
Document Object Identifier (DOI)
Hoelscher, Colleen. “IMSLP/Petrucci Music Library.” Reference Reviews 31, no. 7 (2017): 26-27.