Columbia subject headings:
Schoenberg, Arnold, 1874-1951. Pierrot lunaire.
Songs--20th century--History and criticism.
Vocal music--20th century--History and criticism.
Harvard subject headings:
Schoenberg, Arnold, 1874-1951. Pierrot lunaire
Songs with instrumental ensemble--20th century--History and criticism.
Songs--20th century--History and criticism.
Vocal music--20th century--History and criticism.
Princeton subject headings:
Schoenberg, Arnold, 1874-1951. Pierrot lunaire.
Songs--20th century--History and criticism.
Vocal music--20th century--History and criticism.