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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|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}} hashad 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 (Apple)|iOS app]]<ref name="IMSLP on the App Store"/> and an [[Android (operating system)#Applications|Android app]].<ref name="play.google.com"/>
==History==
===Overview===
The site was launched on February 16, 2006. The library consists mainly of [[image scanner|scans]] of old musical editions out of [[copyright]]. In addition, it admits scores by contemporary composers who wish to share their music with the world by releasing it under a [[Creative Commons]] license. One of the main projects of the IMSLP was the sorting and uploading of the complete works of [[Johann Sebastian Bach]] in the [[Bach Gesellschaft|Bach-Gesellschaft Ausgabe]] (1851–99), a task that was completed on November 3, 2008. Besides J.S. Bach's complete public ___domain works, many or all available public ___domain works of [[Amy Beach]], [[Ludwig van Beethoven]], [[Johannes Brahms]], [[Joseph Canteloube]], [[Emmanuel Chabrier]], [[Ernest Chausson]], [[Frédéric Chopin]], [[Joseph Haydn]], [[Arcangelo Corelli]], [[Claude Debussy]], [[Vincent d'Indy]], [[Paul Dukas]], [[Gabriel Fauré]], [[Pierre-Octave Ferroud]], [[George Frideric Handel]], [[Jean Huré]], [[Albéric Magnard]], [[Giovanni Pierluigi da Palestrina]], [[Maurice Ravel]], [[Albert Roussel]], [[Erik Satie]], [[Florent Schmitt]], [[Franz Schubert]], [[Clara Schumann]], [[Robert Schumann]], [[Alexander Scriabin]] and [[Jean Sibelius]] are available, as well as a large percentage of [[Wolfgang Amadeus Mozart]] and [[Franz Liszt]]'s works.{{citation needed|date=May 2018}} Some less-played scores of these composers remain unavailable, as well as many scores being available only as the composer's original manuscript.
Besides providing a digital repository, the IMSLP offers possibilities as a [[musicology|musicological]] encyclopaedia, since multiple and historical editions of a single composition can be uploaded. Also, pages on publishers provide valuable information, and the work pages themselves often contain a large quantity of information, e.g. roles in an opera.
IMSLP is recommended as a research tool by [[Massachusetts Institute of Technology|MIT]],<ref>{{cite web |url=http://news-libraries.mit.edu/blog/archives/354 |title=Wiki of public ___domain classical scores |access-date=2007-11-06 |author=Moore, Christie |date=2007-01-05 |work=MIT Library News |url-status=dead |archive-url=https://web.archive.org/web/20071111193507/http://news-libraries.mit.edu/blog/archives/354 |archive-date=2007-11-11 }}</ref><ref>{{cite web |url=http://libguides.mit.edu/content.php?pid=12401&sid=104163 |title=Research Guides: Music |access-date=2008-09-04 |year=2008 |work=MIT Libraries |archive-date=2008-12-22 |archive-url=https://web.archive.org/web/20081222045030/http://libguides.mit.edu/content.php?pid=12401&sid=104163 |url-status=live }}</ref> which also uses it extensively for providing scores for its [[MIT OpenCourseWare|OpenCourseWare]] courses.<ref>{{cite web |url=http://ocw.mit.edu/OcwWeb/Music-and-Theater-Arts/21M-250Fall-2006/Listening/index.htm |title=21M.250 Schubert to Debussy, Fall 2006 |access-date=2007-11-06 |author=MIT |year=2007 |work=MIT OpenCourseWare |archive-url = https://web.archive.org/web/20071013150248/http://ocw.mit.edu/OcwWeb/Music-and-Theater-Arts/21M-250Fall-2006/Listening/index.htm |archive-date = 2007-10-13}}</ref><ref>{{cite web |url=http://ocw.mit.edu/OcwWeb/Music-and-Theater-Arts/21M-262Fall-2006/Listening/index.htm |title=21M.262 Modern Music:1900–1960, Fall 2006 |access-date=2007-11-06 |author=MIT |year=2007 |work=MIT OpenCourseWare |archive-url = https://web.archive.org/web/20071013150253/http://ocw.mit.edu/OcwWeb/Music-and-Theater-Arts/21M-262Fall-2006/Listening/index.htm |archive-date = 2007-10-13}}</ref> It is suggested as a resource by the [[Sibley Music Library]]<ref>{{cite web|url=http://www.esm.rochester.edu/sibley/?page=request|title=Request Public Domain Scores|access-date=2009-02-01|year=2008|work=Sibley Music Library|archive-date=2020-07-03|archive-url=https://web.archive.org/web/20200703075214/https://www.esm.rochester.edu/sibley/?page=request|url-status=dead}}</ref> and by libraries at other universities such as [[Stanford University]],<ref>{{cite web |url=http://www-sul.stanford.edu/depts/music/research_help/outsidelinks.html#sheet |title=Outside links of interest |access-date=2008-09-04 |year=2007 |work=Stanford University, Libraries and Academic Information Resources |archive-date=2008-10-11 |archive-url=https://web.archive.org/web/20081011202000/http://www-sul.stanford.edu/depts/music/research_help/outsidelinks.html#sheet |url-status=live }}</ref> [[University of California, Los Angeles]],<ref>{{cite web|url=http://www.library.ucla.edu/libraries/music/12291.cfm|title=UCLA Library / Music Library / Music Scores and Sheet Music Online|access-date=2009-01-28|year=2009|work=University of California Music Library|archive-url=https://web.archive.org/web/20080725051517/http://www2.library.ucla.edu/libraries/Music/12291.cfm|archive-date=2008-07-25|url-status=dead}}</ref> [[Brown University]],<ref>{{cite web |url=httphttps://dl.lib.brown.edu/gateway/program.php?programid=45&task=internet#32 |title=Selected internet resources for music |access-date=2008-09-04 |author=Quist, Ned |year=2007 |work=Brown University Library |url-status=dead |archive-url=https://web.archive.org/web/20081026103105/http://dl.lib.brown.edu/gateway/program.php?programid=45&task=internet#32 |archive-date=2008-10-26 }}</ref> [[University of Pennsylvania]],<ref>{{cite web|url=http://onlinebooks.library.upenn.edu/archives.html#music|title=The Online Books Page: Archives and Indexes|access-date=2009-01-28|year=2009|work=Penn Libraries|archive-date=2009-02-02|archive-url=https://web.archive.org/web/20090202202039/http://onlinebooks.library.upenn.edu/archives.html#music|url-status=live}}</ref> [[University of Wisconsin–Madison]],<ref>{{cite web |url=http://music.library.wisc.edu/resources/scores.html#online-scores |title=Resources: Scores (Printed Music) – Mills Music Library, UW–Madison |access-date=2008-09-04 |year=2007 |work=University of Wisconsin–Madison Libraries |archive-url=https://web.archive.org/web/20080930170524/http://music.library.wisc.edu/resources/scores.html#online-scores |archive-date=2008-09-30 |url-status=dead }}</ref> [[Oberlin Conservatory of Music]],<ref>{{cite web |url=httphttps://oberlinconservatorylibrary.blogspot.com/2007/04/classical-music-in-public-___domain.html |title=Classical Music in the Public Domain |access-date=2008-09-04 |author=Conlib |date=2007-04-26 |work=News from the Oberlin Conservatory Library |archive-date=2009-05-27 |archive-url=https://web.archive.org/web/20090527080524/http://oberlinconservatorylibrary.blogspot.com/2007/04/classical-music-in-public-___domain.html |url-status=live }}</ref> [[Manhattan School of Music]]<ref>{{cite web |url=http://library.msmnyc.edu/screens/freestuff.html |title=Free stuff on the web |access-date=2008-09-04 |author=Sharp, Peter Jay |year=2007 |work=The Peter Jay Sharp Library, Manhattan School of Music |archive-date=2016-01-20 |archive-url=https://web.archive.org/web/20160120044259/http://library.msmnyc.edu/screens/freestuff.html |url-status=live }}</ref> [[University of Maryland, College Park|University of Maryland]],<ref>{{cite web |url=http://lib.guides.umd.edu/findingscores |title=Finding Music Scores |access-date=2013-07-10 |year=2012 |work=University of Maryland Libraries |archive-date=2013-12-21 |archive-url=https://web.archive.org/web/20131221064815/http://lib.guides.umd.edu/findingscores |url-status=dead }}</ref> [[University of Washington]],<ref>{{cite web |url=http://www.lib.washington.edu/subject/Music/dr/elsco.html |title=Musical Scores |access-date=2008-09-04 |year=2007 |work=University of Washington Libraries |url-status=dead |archive-url=https://web.archive.org/web/20080920005522/http://www.lib.washington.edu/subject/Music/dr/elsco.html |archive-date=2008-09-20 }}</ref> [[University of Cincinnati]],<ref>{{cite web|url=http://libraries.uc.edu/libraries/ccm/research/OnlineMusic.html|title=OnlineMusic|access-date=2009-01-28|year=2009|work=University of Cincinnati Albino Gorno Memorial Music Library|archive-date=2012-07-11|archive-url=https://archive.today/20120711085322/http://libraries.uc.edu/libraries/ccm/research/OnlineMusic.html|url-status=live}}</ref> [[University of Wisconsin–Milwaukee]],<ref>{{cite web|url=http://www.uwm.edu/Libraries/Music/online_scores.html|title=Finding Online Scores|access-date=2009-01-28|year=2009|work=UWM Music Library|archive-url=https://web.archive.org/web/20090415092941/http://www.uwm.edu/Libraries/Music/online_scores.html|archive-date=2009-04-15|url-status=dead}}</ref> [[Appalachian State University]]<ref>{{cite web|url=http://www.library.appstate.edu/music/emusic.html|title=Electronic Scores|access-date=2009-01-28|year=2009|work=Appalachian State University Library|archive-url=https://archive.today/20120213190655/http://www.library.appstate.edu/music/emusic.html|archive-date=2012-02-13|url-status=dead}}</ref> in the US, [[McGill University]]<ref>{{cite web|url=https://www.mcgill.ca/music-library/collections/links/onlinescores/ |title=Scores (online databases and indexes) |access-date=2008-09-04 |year=2007 |work=Marvin Duchow Music Library, McGill |url-status=dead |archive-url=https://web.archive.org/web/20081222064031/http://www.mcgill.ca/music-library/collections/links/onlinescores/ |archive-date=December 22, 2008 }}</ref> in Canada, [[University of Oxford]],<ref>{{cite web|url=http://www.ouls.ox.ac.uk/music/eresources/links|title=Useful Links – Music Faculty Library|access-date=2009-02-12|year=2008|work=Music Faculty Library|archive-url=https://archive.today/20121223024120/http://www.ouls.ox.ac.uk/music/eresources/links|archive-date=2012-12-23|url-status=dead}}</ref> [[University of Cambridge]],<ref>{{cite web|url=http://www.mus.cam.ac.uk/external/pendlebury/wwwresources.html|title=Faculty of Music: Pendlebury Library – Online Resources|access-date=2009-02-12|year=2007|work=Pendlebury Library of Music|archive-url=https://web.archive.org/web/20010303190956/http://www.mus.cam.ac.uk/external/pendlebury/wwwresources.html|archive-date=2001-03-03|url-status=dead}}</ref> [[University of Edinburgh]]<ref>{{cite web|url=http://www.lib.ed.ac.uk/resbysub/music_dbs.shtml|title=Edinburgh University Library: Resources By Subject: Music Databases, E-Journals, Search Tools & Websites|access-date=2009-02-12|year=2008|work=Edinburgh University Library|archive-date=2010-03-15|archive-url=https://web.archive.org/web/20100315003147/http://www.lib.ed.ac.uk/resbysub/music_dbs.shtml|url-status=live}}</ref> [[University of Bristol]]<ref>{{cite web|url=http://www.bris.ac.uk/is/library/subjects/music/internetlinks/|title=Bristol University / Information Services / Internet links|access-date=2009-02-12|year=2009|work=Bristol University Library|archive-date=2011-06-07|archive-url=https://web.archive.org/web/20110607210141/http://www.bris.ac.uk/is/library/subjects/music/internetlinks/|url-status=dead}}</ref> in the UK, [[University of Melbourne]]<ref>{{cite web |url=http://www.vca.unimelb.edu.au/Content.aspx?topicID=581|title=VCA / LENTON PARR LIBRARY / Music / Websites|access-date=2009-02-12|year=2009|work=Lenton Parr Library|archive-url = https://web.archive.org/web/20100510194522/http://www.vca.unimelb.edu.au/Content.aspx?topicID=581|archive-date=May 10, 2010 |url-status=dead}}</ref> in Australia, and others. In 2019, IMSLP and [[TwoSetViolin]] collaborated to make a TwoSetViolin x IMSLP merchandise lineup.<ref>{{Cite web |date=14 September 2019 |title=First Official Collaboration. @twosetapparel x IMSLP. Pre-Orders available now at www.twosetapparel.com #twosetviolin #twosetapparel |url=https://www.instagram.com/p/B2Z6X-KAJMj/ |access-date=29 June 2022 |website=[[Instagram]] |archive-date=24 November 2023 |archive-url=https://web.archive.org/web/20231124202853/https://www.instagram.com/p/B2Z6X-KAJMj/ |url-status=live }}</ref>
=== Logo ===
===Subscription introduction===
On December 27, 2015, the IMSLP moved to a subscription-based model, where users are expected to pay to avoid a waiting period on some of the files available on the site, and to access certain newly uploaded files.<ref name="Strad2016">{{cite web|title = IMSLP music library introduces paid membership – The Strad|url = http://www.thestrad.com/cpt-latests/imslp-music-library-introduces-paid-membership/|website = The Strad|access-date = 2016-01-14|language = en-US|date = 2016-01-04|archive-url = https://web.archive.org/web/20160114085206/http://www.thestrad.com/cpt-latests/imslp-music-library-introduces-paid-membership/|archive-date = 2016-01-14}}</ref> Users who have not paid are subject to a 15-second waiting period on certain files (excluding [[Creative Commons]]-licensed files that constitute a majority of the site's files),<ref>{{cite web |url=http://imslpforums.org/viewtopic.php?f=1&p=40283#p40283 |title=Upcoming changes - Page 2 |publisher=IMSLP Forums |access-date=2016-07-10 |archive-date=2016-02-14 |archive-url=https://web.archive.org/web/20160214102734/http://imslpforums.org/viewtopic.php?f=1&p=40283#p40283 |url-status=live }}</ref> and are required to wait up to two days to access newly uploaded files.<ref name="ReferenceA">{{cite web|url=httphttps://imslp.org/wiki/IMSLP:Membership_Q%26A |title=IMSLP:Membership Q&A - IMSLP/Petrucci Music Library: Free Public Domain Sheet Music |access-date=January 27, 2016 |url-status=dead |archive-url=https://web.archive.org/web/20160131001340/http://imslp.org/wiki/IMSLP%3AMembership_Q%26A |archive-date=January 31, 2016 }}</ref>
The project leader Edward Guo<ref>{{cite web|url=httphttps://imslp.org/wiki/User:Feldmahler |title=User:Feldmahler - IMSLP/Petrucci Music Library: Free Public Domain Sheet Music |access-date=April 18, 2015 |url-status=dead |archive-url=https://web.archive.org/web/20150418150035/http://imslp.org/wiki/User%3AFeldmahler |archive-date=April 18, 2015 }}</ref>{{primary inline|date=August 2016}} claimed the changes were made because the level of funding was "not sustainable in the long run", but also noted:
<blockquote><poem>The income we receive from various sources have been enough to maintain the site so far, but I increasingly believe that this level of funding is not sustainable in the long run. We are not, like traditional music libraries, bound by the service of a conservatory, university or publisher, but rather can do things that traditional institutions are not willing to do, because we serve only musicians and music lovers. But everything is a tradeoff – we also do not have the funding infrastructure these traditional institutions have, and over the past few years I’ve frankly exhausted my imagination in searching for new realistic sources of funding for IMSLP.
===EU server===
On July 10, 2010, a forum thread<ref>{{cite web |url=http://imslpforums.org/viewtopic.php?f=1&t=3794 |title=Imslp-Eu |publisher=IMSLP Forums |access-date=2016-07-10 |archive-date=2016-09-11 |archive-url=https://web.archive.org/web/20160911140125/http://imslpforums.org/viewtopic.php?f=1&t=3794 |url-status=live }}</ref> announced the opening of a new server located in the Netherlands. This server allows works that are public ___domain in Canada and the EU to be downloaded legally, even if they are under copyright in the US. The server was initially run by an unaffiliated European organization, while a forum thread <ref>{{cite web|url=http://imslpforums.org/viewtopic.php?f=1&t=6985|title=Project Leonardo|website=Imslpforums.org|access-date=2013-07-07|archive-date=2014-08-03|archive-url=https://web.archive.org/web/20140803142345/http://imslpforums.org/viewtopic.php?f=1&t=6985|url-status=live}}</ref> later announced that operations had been handed over to Project Leonardo, a new unaffiliated company incorporated in New Zealand to "provide web hosting services to online libraries that distribute free contents in any fields of arts and science". Files on the EU server are flagged (EU).
===US server===
===Current legal structure===
IMSLP is now owned by Project Petrucci LLC, a private company created to run the website. Project Petrucci LLC was registered as a [[Delaware]] [[limited-liability company]] on June 28, 2008,<ref>{{cite web |url=https://icis.corp.delaware.gov/Ecorp/EntitySearch/NameSearch.aspx |title=Division of Corporations - Filing |website=Icis.corp.delaware.gov |date=2004-12-15 |access-date=2016-07-10 |archive-date=2015-09-21 |archive-url=https://web.archive.org/web/20150921182309/https://icis.corp.delaware.gov/Ecorp/EntitySearch/NameSearch.aspx |url-status=live }}</ref> when the site founder was studying at the [[New England Conservatory]].<ref>{{cite web|url=httphttps://imslp.org/wiki/User:Feldmahler#Contact |title=User:Feldmahler - IMSLP/Petrucci Music Library: Free Public Domain Sheet Music |access-date=April 18, 2015 |url-status=dead |archive-url=https://web.archive.org/web/20150418150035/http://imslp.org/wiki/User%3AFeldmahler |archive-date=April 18, 2015 }}</ref><ref>{{cite web |last=Knopf |first=Howard |url=httphttps://excesscopyright.blogspot.com/2011/02/imslp-back-in-news-library-of-public.html |title=EXCESS COPYRIGHT: IMSLP Back in the News - Library of Public Domain Music Scores |website=Excesscopyright.blogspot.com |date=2011-02-22 |access-date=2016-07-10 |archive-date=2016-03-10 |archive-url=https://web.archive.org/web/20160310105104/http://excesscopyright.blogspot.com/2011/02/imslp-back-in-news-library-of-public.html |url-status=live }}</ref>
Project Leonardo is an [[internet service provider]] that hosts free online content in the arts or sciences.<ref>{{cite web |url=http://leonardolibrary.org/ |title=Project Leonardo Portal |publisher=Leonardo Library |access-date=2016-07-10 |archive-date=2016-07-13 |archive-url=https://web.archive.org/web/20160713145957/http://leonardolibrary.org/ |url-status=live }}</ref>
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