Columbia subject headings:
Aesthetics, German--18th century.
Kant, Immanuel, 1724-1804--Aesthetics.
Music--Philosophy and aesthetics.
Opera--18th century.
Schiller, Friedrich, 1759-1805--Aesthetics.
Harvard subject headings:
Kant, Immanuel, 1724-1804--Aesthetics.
Music--Philosophy and aesthetics
Opera--18th century
Play (Philosophy)
Schiller, Friedrich, 1759-1805--Aesthetics.
Princeton subject headings:
Aesthetics, German--18th century.
Kant, Immanuel, 1724-1804--Aesthetics.
Music--Philosophy and aesthetics.
Opera--18th century.
Schiller, Friedrich, 1759-1805--Aesthetics.