Columbia subject headings:
Beethoven, Ludwig van, 1770-1827.
Haydn, Joseph, 1732-1809.
Mozart, Wolfgang Amadeus, 1756-1791.
Music--Austria--Vienna--18th century--History and criticism.
Schubert, Franz, 1797-1828.
Harvard subject headings:
Beethoven, Ludwig van, 1770-1827
Haydn, Joseph, 1732-1809.
Mozart, Wolfgang Amadeus, 1756-1791
Music--Austria--Vienna
Schubert, Franz, 1797-1828
Princeton subject headings:
Beethoven, Ludwig van, 1770-1827.
Haydn, Joseph, 1732-1809.
Mozart, Wolfgang Amadeus, 1756-1791.
Music--Austria--Vienna--18th century--History and criticism.
Schubert, Franz, 1797-1828.