Columbia subject headings:
Minorities--United States--Songs and music.
Musicals--Excerpts.
Popular music--United States.
Harvard subject headings:
Minorities--United States--Songs and music.
Musicals--Excerpts.
Popular music--United States
Princeton subject headings:
African Americans--Songs and music.
German Americans--Songs and music.
Irish Americans--Songs and music.
Popular music--United States--To 1901.