The International Music Score Library Project (IMSLP), also known as the Petrucci Music Library after publisher Ottaviano Petrucci, is a subscription-based digital library of public-domain music scores. The project, which uses MediaWiki software, has uploaded more than 630,000 scores and 73,000 recordings of more than 195,000 works by 24,000 composers. IMSLP has both an iOS app and an Android app. More information...
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