- 19th Century American Sheet Music (UNC, Chapel Hill)
- 19th Century California Sheet Music
- African American Sheet Music, 1820-1920 (Brown University)
- Charles H. Templeton Sheet Music Collection (Mississippi State University)
- Chopin Early Editions (University of Chicago)
- The Classical String Quartet, 1770-1840 (Rare Book, Manuscript, and Special Collections Library, Duke University): digitized string quartet parts from rare or unique publications. Includes compositions by Mozart, Pleyel, Spohr, Fesca, Rossini, Weber, and others.
- Digital Scores from the Collections of the Eda Kuhn Loeb Music Library (Harvard University)
- Digitale Bibliothek: Das Munchener Digitalisierungszentrum (Bayerische Staatsbibliothek): includes Handel-Gesellschaft.
- Historic American Sheet Music 1850-1920 (Duke University)
- Ignaz Pleyel Early Editions (Iowa Digital Library): Early print and manuscript scores, mostly chamber and keyboard music, published during the composer’s lifetime.
- IN Harmony: Sheet Music from Indiana (Indiana University)
- Inventions of Note: Sheet Music Collection (MIT)
- Juilliard Manuscript Collection
- Lester S. Levy Collection of Sheet Music
- Library of Congress Collections
- Library of Congress: America Singing: Nineteenth-Century Song Sheets
- Library of Congress: Band Music from the Civil War Era
- Library of Congress: Fiddle Tunes of the Old Frontier: The Henry Reed Collection
- Library of Congress: Leonard Bernstein Collection, ca. 1920-1989
- Library of Congress: Music for the Nation: American Sheet Music 1870-1885
- Library of Congress: The Rosaleen Moldenhauer Memorial: Music History from Primary Sources: A Guide to the Moldenhauer Archives
- Library of Congress: The Alfred Whital Stern Collection of Lincolniana: Sheet Music about Lincoln, Emancipation, and the Civil War.
- Musical Scores (Sibley Music Library, Eastman School of Music)
- New York Public Library Digital Gallery
- NMA Online: Neue Mozart-Ausgabe: Digitized Version (Digital Mozart Edition: A Project of the Internationale Stiftung Mozarteum and The Packard Humanities Institute): includes both the music and critical commentary volumes of the Neue Mozart-Ausgabe
- Schubert Manuskripte (Wienbibliothek im Rathaus)
- Sheet Music Consortium: Sheet Music on the Web (UCLA, Indiana University, Johns Hopkins University, Duke University)
- Sheet Music Collections Online (University of Chicago’s Portal)
- University of California, Los Angeles Digital Archive: Popular American Music
- VARIATIONS Prototype: Online Musical Scores (Indiana University)
- Virtual Library of Musicology (ViFaMusik)
- Yiddish Sheet Music: A Brown University Library Digital Collection