Columbia subject headings:
Dramatic music--21st century--History and criticism.
Musical theater--History--20th century.
Musical theater--History--21st century.
Theaters--Sound effects.
Harvard subject headings:
Princeton subject headings:
Dramatic music--20th century--History and criticism.
Dramatic music--21st century--History and criticism.
Musical theater--History--20th century.
Musical theater--History--21st century.