International Music Score Library Project

IMSLP
Petrucci Music Library
	Screenshot IMSLP main page in 2019
Type of site	Online library of sheet music
Available in	Arabic; Catalan; Chinese; Croatian; Czech; Danish; Dutch; English; Finnish; French; Galician; German; Greek; Hungarian; Indonesian; Italian; Japanese; Korean; Macedonian; Polish; Portuguese; Russian; Serbian; Slovenian; Spanish; Swedish; Thai; Turkish;
Headquarters	Canada
Owner	Project Petrucci LLC (private company)
Created by	Edward W. Guo (Feldmahler)
URL	imslp.org; petruccilibrary.org;
Commercial	Yes (subscription)
Registration	Optional (required for contributing and unconstrained access)
Launched	February 16, 2006 (website); July 10, 2018 (iOS); March 28, 2019 (Android)
Current status	Active
Content licence	Creative Commons Attribution-ShareAlike 4.0 International

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 uses MediaWiki software, and as of 24 November 2023^[ref] 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.^[4]^[5] IMSLP has both an iOS app^[2] and an Android app.^[3]

^ Wakin, Daniel J. (February 22, 2011). "Free Trove of Music Scores on Web Hits Sensitive Copyright Note". The New York Times. Archived from the original on March 29, 2018. Retrieved February 24, 2017.
^ ^a ^b "IMSLP on the App Store". apps.apple.com. Archived from the original on 2020-01-15. Retrieved 2020-01-16.
^ ^a ^b "IMSLP Browser – Apps on Google Play". play.google.com. Archived from the original on 2022-01-14. Retrieved 2020-01-16.
^ "IMSLP:News - IMSLP: Free Sheet Music PDF Download". imslp.org. Archived from the original on 2021-08-12. Retrieved 2022-02-14.
^ Cite error: The named reference imslp.org was invoked but never defined (see the help page).

[1] Wakin, Daniel J. (February 22, 2011). "Free Trove of Music Scores on Web Hits Sensitive Copyright Note". The New York Times. Archived from the original on March 29, 2018. Retrieved February 24, 2017.

[IMSLP_on_the_App_Store-2] "IMSLP on the App Store". apps.apple.com. Archived from the original on 2020-01-15. Retrieved 2020-01-16.

[play.google.com-3] "IMSLP Browser – Apps on Google Play". play.google.com. Archived from the original on 2022-01-14. Retrieved 2020-01-16.

[4] "IMSLP:News - IMSLP: Free Sheet Music PDF Download". imslp.org. Archived from the original on 2021-08-12. Retrieved 2022-02-14.

[imslp.org-5] Cite error: The named reference imslp.org was invoked but never defined (see the help page).

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Screenshot IMSLP main page in 2019
Type of site	Online library of sheet music
Available in	Arabic Catalan Chinese Croatian Czech Danish Dutch English Finnish French Galician German Greek Hungarian Indonesian Italian Japanese Korean Macedonian Polish Portuguese Russian Serbian Slovenian Spanish Swedish Thai Turkish
Headquarters	Canada
Owner	Project Petrucci LLC (private company)
Created by	Edward W. Guo (Feldmahler)^[1]
URL	imslp.org petruccilibrary.org
Commercial	Yes (subscription)
Registration	Optional (required for contributing and unconstrained access)
Launched	February 16, 2006; 18 years ago (2006-02-16) (website) July 10, 2018; 6 years ago (2018-07-10)^[2] (iOS) March 28, 2019; 5 years ago (2019-03-28)^[3] (Android)
Current status	Active
Content licence	Creative Commons Attribution-ShareAlike 4.0 International