Columbia subject headings:
Debussy, Claude, 1862-1918. Piano music.
Ravel, Maurice, 1875-1937. Piano music.
Harvard subject headings:
Debussy, Claude, 1862-1918
Music--France--History and criticism
Piano music--19th century--History and criticism
Piano music--20th century--History and criticism
Ravel, Maurice, 1875-1937
Princeton subject headings:
Debussy, Claude, 1862-1918. Piano music.
Ravel, Maurice, 1875-1937. Piano music.