Columbia subject headings:
Ballets.
Octets (Celesta, piano, clarinets (2), flute, horns (2), harp)
Harvard subject headings:
Ballets
Ballets (Music)
Octets (Celesta, piano, clarinets (2), flute, horns (2), harp)
Princeton subject headings:
Ballets.
Octets (Piano, clarinets (2), flute, horns (2), harp, celesta)