Columbia subject headings:
Beethoven, Ludwig van, 1770-1827. Quartets,
Harvard subject headings:
Beethoven, Ludwig van, 1770-1827. Quartets,
Beethoven, Ludwig van, 1770-1827. Violins (2), viola, cello music
String quartets--Analysis, appreciation.
Princeton subject headings:
Beethoven, Ludwig van, 1770-1827. Quartets,