Columbia subject headings:
Horn and piano music--Scores and parts.
Trios (Piano, horns (2))--Scores and parts.
Harvard subject headings:
Horn and piano music--Scores and parts
Parts (Music)
Scores
Trios (Piano, horns (2))--Scores and parts.
Princeton subject headings:
Horn and piano music--Scores and parts.
Parts (Music)
Scores.
Trios (Piano, horns (2))--Scores and parts.