Columbia subject headings:
Songs with instrumental ensemble.
Vocal duets with instrumental ensemble.
Vocal quartets with instrumental ensemble.
Vocal quintets with instrumental ensemble.
Vocal trios with instrumental ensemble.
Harvard subject headings:
Songs with instrumental ensemble.
Vocal duets with instrumental ensemble.
Vocal quartets with instrumental ensemble.
Vocal quintets with instrumental ensemble.
Vocal trios with instrumental ensemble.
Princeton subject headings:
Songs with instrumental ensemble.
Songs.
Vocal duets with instrumental ensemble.
Vocal quartets with instrumental ensemble.
Vocal quintets with instrumental ensemble.
Vocal trios with instrumental ensemble.