Columbia subject headings:
Chopin, Frédéric, 1810-1849--Congresses.
Chopin, Frédéric, 1810-1849--Influence--Congresses.
Piano music--19th century--History and criticism--Congresses.
Harvard subject headings:
Chopin, Frédéric, 1810-1849--Congresses.
Chopin, Frédéric, 1810-1849--Influence--Congresses.
Piano music--19th century--History and criticism--Congresses.
Princeton subject headings:
Chopin, Frédéric, 1810-1849--Congresses.
Chopin, Frédéric, 1810-1849--Influence--Congresses.
Piano music--19th century--History and criticism--Congresses.