Columbia subject headings:
Canons, fugues, etc. (Piano, 4 hands)
Sonatas (Piano, 4 hands)
Variations (Piano, 4 hands)
Harvard subject headings:
Canons, fugues, etc. (Piano, 4 hands)
Fugues
Sonatas
Sonatas (Piano, 4 hands)
Variations (Music)
Variations (Piano, 4 hands)
Princeton subject headings: