Thousands of public domain scores for free.

As of September 2010 CPD has over 12,000 public domain score pages. The repertoire covered is as varied as possibly can.

DPLA is a platform that aggregates the content of many other major collections, such as Hathi Trust, Internet Archive, NYPL, the Smithsonian, the National Archives, ARTStor, and many other large digital collections.

Explore 318,871 music recordings, pieces of sheet music and other music items from across Europe.

The Music Treasures Consortium provides online access to the world's most valued music manuscripts and print materials, held at the most renowned music archives, in order to further research and scholarship.

Sheet music is differentiated from scores because of its length. Often times sheet music collections will have and American music emphasis.

These tend to provide information and/or access to manuscript sources and early editions.

Digitized scores from the National Library of Argentina.

Biblioteca Nacional Brasil :: Digital Collections available from the National Library of Brazil & check also Musica Brasilis

The Rare Book, Manuscript, and Special Collections Library at Duke University has about forty collections of string quartets in parts dating from this time (about 1770-1840), most, though not all complete, and representing composers whose works are rarely found in modern editions. Digitization of these parts makes newly available for performance, study and recording a large and varied repertoire of works for this instrumental ensemble.

A scholarly initiative to offer free online access to new, high-quality early music scores produced by today's leading experts. Based at Utrecht University in the Netherlands, the project represents a collaborative development effort of specialists in musicology, information science, and music retrieval. The major purpose of the enterprise is to produce and maintain an online corpus of electronic editions.

Published by the UCLA Music Library in eScholarship, the Contemporary Music Score Collection includes the digital, open access scores from the Contemporary Score Edition series, the first open access edition of new music published by a library, and scores from the Kaleidoscope 2020 Call for Scores, an open access collaboration with the UCLA Music Library.

Drawing on the Ragheb Moftah Collection, this presentation explores some of the earliest music transcriptions by explorers, missionaries, and scholars in Egypt, highlighting Moftah's efforts to notate, record, and preserve all Coptic Orthodox hymns. Transcriptions and recordings are available for download and/or streaming.

Many theory treatises and rare musical publications are available on this website. The Nanki Music Library was the first public musical library in Japan and actively collected many rare musical sources from throughout the world.

Harvard's Digital Scores and Libretti website include first and early editions and manuscript copies of music from the eighteenth and early nineteenth centuries by J.S. Bach and Bach family members, Mozart, Schubert and other composers, as well as multiple versions of nineteenth century opera scores, seminal works of musical modernism, and music of the Second Viennese School.

Links to a number of collections and resources, from the Gilmore Music Library's free Early Music resources guide.

Scores and books in the public domain. Many of these are unique to the Sibley Music Library collection.

This website brings together works of contemporary Argentinian musicians (composers). Tango, folk, songs, guitar, and chamber music are available. Registration is mandatory. Files are available in PDF format.

A collection of 140 manuscripts by a variety of famous composers, Bach, Beethoven, Debussy, Liszt, Mahler, Mozart, Wagner, and many others.

Kern is a programming language that encodes music and allows researchers to manipulate it at will. This website provides access to a large body of works encoded in that language commonly used by music psychologists and other music experts conducting computer-based musical tasks.

A small collection of Jewish music digitized at the Library of The Jewish Theological Seminary.

Since the project began in 2007, more than 900 manuscripts containing approximately 42,000 pages have been digitized and described. These include works by J. S. Bach, Beethoven, Brahms, Chopin, Debussy, Fauré, Haydn, Liszt, Mahler, Massenet, Mendelssohn, Mozart, Puccini, Schubert, and Schumann, among many others.

Munich Digitization Center (MDZ) handles the digitization and online publication of the cultural heritage preserved by the Bavarian State Library and by other institutions. It provides one of the largest and fastest growing digital collections in Germany, now comprising 415,954 titles available online. Access is free of charge!

(Center for Computer Assisted Research in the Humanities). Provides Kern and Midi files for music composed between 1700 and 1825 (Bach, Beethoven, Corelli, Handel, Haydn, Mozart, Vivaldi, and more).

100,000 digital sheets of music to download from the library’s collections, and also links to even more resources with sheet music.

Public-domain music scores in several formats; includes some audio.

Provides free and open access to over 700,000 images digitized from the The New York Public Library's vast collections, including illuminated manuscripts, historical maps, vintage posters, rare prints, photographs and more.

The Collections Search Center provides easy "one-stop searching" of more than 6.4 million of the Smithsonian's museum, archives, library and research holdings and collections. The access to more Smithsonian collections via this Search Center is increasing over time.

The Music Library Digital Scores Collection contains manuscript musical scores dating from the 17th through 19th centuries. The majority of the collection is comprised of 17th and 18th century operas, opera excerpts, and other vocal music. The original manuscripts reside in the Music Library’s Rare Book Collection.