Columbia subject headings:
Harvard subject headings:
Quartets (Unspecified instruments (4))--Scores.
Songs with instrumental ensemble--Scores.
Vocal quartets, Unaccompanied--Scores.
Princeton subject headings:
Quartets (Unspecified instruments (4))--Scores.
Scores.
Songs with instrumental ensemble--Scores.
Songs.
Vocal quartets, Unaccompanied--Scores.