Columbia subject headings:
Harvard subject headings:
Meyerbeer, Giacomo, 1791-1864--Congresses.
Music--19th century--History and criticism--Congresses.
Opera--France--History and criticism--Congresses.
Princeton subject headings:
Meyerbeer, Giacomo, 1791-1864--Congresses.
Opera--France--History and criticism--Congresses.