Columbia subject headings:
Brahms, Johannes, 1833-1897. Piano music.
Piano music--19th century--History and criticism.
Harvard subject headings:
Brahms, Johannes, 1833-1897. Piano music.
Chopin, Frédéric, 1810-1849. Piano music.
Piano music--19th century--History and criticism
Princeton subject headings:
Brahms, Johannes, 1833-1897. Piano music.
Piano music--19th century--History and criticism.