Columbia subject headings:
Harvard subject headings:
Beethoven, Ludwig van, 1770-1827--Criticism and interpretation--Congresses.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Congresses.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Influence--Congresses.
Music and philosophy--History--19th century--Congresses.
Princeton subject headings:
Beethoven, Ludwig van, 1770-1827--Criticism and interpretation.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Influence.
Hegel, Georg Wilhelm Friedrich, 1770-1831.
Music and philosophy--History--19th century.