Columbia subject headings:
Music--Philosophy and aesthetics.
Harvard subject headings:
Beethoven, Ludwig van, 1770-1827--Criticism and interpretation--History.
Classicism--History.
Haydn, Joseph, 1732-1809--Criticism and interpretation--History.
Mozart, Wolfgang Amadeus, 1756-1791--Criticism and interpretation--History.
Music and philosophy--Europe--History.
Music--Europe--18th century--History and criticism
Music--Europe--19th century--History and criticism
Music--Philosophy and aesthetics
Princeton subject headings:
Music--Philosophy and aesthetics.