The '''International Music Score Library Project''' ('''IMSLP'''), also known as the '''Petrucci Music Library''' after publisher [[Ottaviano Petrucci]], is a for-profit{{Citation needed|date=November 2023}} subscription-based digital library of [[public ___domain|public-___domain]] [[sheet music|music scores]]. The project uses [[MediaWiki]] software, and {{As of|2023|November|24|lc=y|url=https://imslp.org/wiki/IMSLP:News}} has uploaded more than 736,000 scores and 80,700 recordings by 1,900 performers of more than 226,000 works by 27,400 composers.<ref>{{Cite web |title=IMSLP:News - IMSLP: Free Sheet Music PDF Download |url=https://imslp.org/wiki/IMSLP:News |access-date=2022-02-14 |website=imslp.org |archive-date=2021-08-12 |archive-url=https://web.archive.org/web/20210812020038/https://imslp.org/wiki/IMSLP:News |url-status=live }}</ref><ref name="imslp.org" /> IMSLP has both an [[App Store (iOS)|iOS app]]<ref name="IMSLP on the App Store"/> and an [[Android (operating system)#Applications|Android app]].<ref name="play.google.com"/>
