Columbia subject headings:
Beethoven, Ludwig van, 1770-1827.
Mendelssohn-Bartholdy, Felix, 1809-1847.
Schubert, Franz, 1797-1828.
Harvard subject headings:
Beethoven, Ludwig van, 1770-1827
Mendelssohn-Bartholdy, Felix, 1809-1847
Schubert, Franz, 1797-1828
Princeton subject headings:
Beethoven, Ludwig van, 1770-1827.
Mendelssohn-Bartholdy, Felix, 1809-1847.
Schubert, Franz, 1797-1828.