Columbia subject headings:
Harvard subject headings:
Haydn, Joseph, 1732-1809.
Metastasio, Pietro, 1698-1782.
Mozart, Wolfgang Amadeus, 1756-1791
Music--France--18th century--History and criticism
Music--France--19th century--History and criticism
Music--Italy--18th century--History and criticism.
Music--Italy--19th century--History and criticism.
Princeton subject headings:
Haydn, Joseph, 1732-1809.
Metastasio, Pietro, 1698-1782.
Mozart, Wolfgang Amadeus, 1756-1791.
Music--France.
Music--Italy.