Columbia subject headings:
Canons, fugues, etc. (Pianos (2))--Scores.
Piano music (Pianos (2))--Scores.
Harvard subject headings:
Canons, fugues, etc. (Pianos (2))--Scores.
Piano music (Pianos (2))--Scores
Princeton subject headings:
Canons, fugues, etc. (Pianos (2))--Scores.
Fugues.
Piano music (Pianos (2))--Scores.
Scores.