Archive of Popular American MusicThe UCLA Music Library's Archive of Popular American Music is a research collection covering the history of popular music in the United States from 1790 to the present. Particular strengths within UCLA Music Library's twentieth-century holdings include music for the theater, motion pictures, radio and television, as well as general popular music, country, rhythm and blues, and rock songs. Provides access to digital versions of the sheet music, and performances of the songs now in the public domain.