Columbia subject headings:
Musicals--Excerpts.
Popular music--1911-1920.
Popular music--1921-1930.
Harvard subject headings:
Musicals--Excerpts.
Popular music--1911-1920
Popular music--1921-1930
Princeton subject headings:
Musicals--Excerpts.
Popular music--United States--1911-1920.
Popular music--United States--1921-1930.
Revues--Excerpts.