Columbia subject headings:
Music--Germany--19th century--History and criticism.
Music--Social aspects--Germany.
Nationalism in music.
Patriotic music--Germany--19th century--History and criticism.
Harvard subject headings:
Nationalism in music.
Opera--Germany--19th century.
Opera--Germany--20th century.
Princeton subject headings:
Music--Germany--History and criticism.
Music--Social aspects--Germany.
Nationalism in music.
Patriotic music--Germany--19th century--History and criticism.