The Recorded Sound Research Center of the LOC, a division of the Motion Picture Broadcasting and Recorded Sound Division, holds a large collection of recorded music, songs, radio shows, historic news broadcasts, war briefings, speeches, recorded spoken poetry, and spoken literature.
The Music Division of the LOC features a collection of sheet music as well as books and documents on music literature and theory.
Shown here is a songbook containing sheet music and lyrics for "The Star Spangled Banner." Listen to an example of early recorded music, "Yankee Doodle," at the link below.