Columbia subject headings:
Beethoven, Ludwig van, 1770-1827--Knowledge--Greece.
Beethoven, Ludwig van, 1770-1827--Knowledge--Rome.
Beethoven, Ludwig van, 1770-1827--Philosophy.
Civilization, Classical--Influence.
Harvard subject headings:
Beethoven, Ludwig van, 1770-1827--Knowledge--Civilization, Classical.
Civilization, Classical
Princeton subject headings:
Beethoven, Ludwig van, 1770-1827--Knowledge--Greece.
Beethoven, Ludwig van, 1770-1827--Knowledge--Rome.
Beethoven, Ludwig van, 1770-1827--Philosophy.
Civilization, Classical--Influence.