Music for the Nation: American Sheet Music contains more than 62,500 pieces of historical sheet music registered for copyright: more than 15,000 registered during the years 1820-1860 and more than 47,000 registered during the years 1870-1885.
The Ozark Folksong Collection, originally recorded and compiled between 1949 and 1965, is the largest and most complete collection of traditional music and associated materials from Arkansas and the Ozarks in the nation.
The Sheet Music Consortium is a group of libraries working toward the goal of building an open collection of digitized sheet music using the Open Archives Initiative:Protocol for Metadata Harvesting (OAI:PMH).