Archive of Popular American MusicEnter a search or click to Browse. When looking at an item's detail, click View Sheet Music" (above Title). Not all items have sheet music. The Archive covers popular music in the United States from 1790 to the present. with almost 450,000 pieces of sheet music, anthologies, and arrangements for band and orchestra. Particular strengths are music for the theater, motion pictures, radio and television, as well as general popular music, country, rhythm and blues, and rock songs.