The Library of Congress' American Memories:
Music for the Nation: American Sheet Music, 1820-1860
Music for the Nation: American Sheet Music, 1870-1885
JScholarship -- for John Hopkins University Libraries, Collections and Communities
http://jscholarship.library.jhu.edu:8080/
From the Library of Congress:
The Alfred Whital Stern Collection of Lincolniana
The Library of Congress: I Hear America Singing
Historic Sheet Music, 1800-1922
Civil War Sheet Music Collection
The Library of Congress' American Memories:
Band Music from the
Civil War Era
Duke University's
Historic
American Sheet Music Project (1850-1920)
The Library of Congress' Music Division's
Thomas A. Edison Sheet Music Collection
Brown University's (of Providence, Rhode Island)
African
American Sheet Music (1850-1920)
American Choral Music (1870-1923)
Brown University's (of Providence, Rhode Island)
World War I Sheet Music [1914-1918] Digitized Collection
Brown University's (of Providence, Rhode Island)
Yiddish Sheet Music Digitized Collection
The University of North Carolina at Chapel Hill Music Library's
19th-Century American Sheet Music
Digitization
The University of South Carolina's
Music Library's Sheet Music Collection
The Library of Congress presents: Music, Theater & Dance Browse from their Sheet Music Collection of over 10,400 pieces
The University of California at Los Angeles
Sheet Music Consortium
The University of California at Berkley's
19th-Century
California Sheet Music
University of Colorado Digital Sheet Music Collection
University of Missippi Digital Library Collection
Charles H. Templeton Sheet Music Collection
Indiana University at Bloomington:
William and Gayle Cook Music Library
The VARIATIONS Online
Score Project
Indiana University (Institute of Museum and Library Services)
IN Harmony: Sheet Music from Indiana
University of California at Los Angeles
Archive of Popular American Music
National Library of Canada and National Archives of Canada
Sheet Music from Canada's Past
Historic Sheet Music at the University of Oregon
The Detroit Public Library in Michigan The E. Azalia Hackley Sheet Music Collection (1799-1922)
University of Indiana Sheet Music (DeVincent and Starr Collections)
The University of Mississippi Department of Archives and Special Collections
Sheldon Harris Sheet Music Collection
The International Music Score Library Project
The Public Domain Music Score Library
Gutenberg: The Sheet Music Project
MusicAustralia
Australia's Music Online, in Time
IMSPL/Petrucci Music Library (a PD music score library)
Online Gallery Collection from the British Library
Victorian Popular Music
The Ashford Sheet Music Collection at the University of Washington
The Danish National Digital Sheet Music Archive
Iowa Digitial Library persents Historic Sheet Music
The Project Gutenberg Sheet Music Project