Columbia subject headings:
Sacred vocal duets with continuo--Scores.
Sacred vocal quartets with continuo--Scores.
Sacred vocal trios with continuo--Scores.
Sacred vocal trios, Unaccompanied.
Harvard subject headings:
Music--Italy--Siena.
Part songs, Italian.
Part songs, Sacred.
Sacred vocal music--Italy--Siena--17th century.
Princeton subject headings:
Part songs.
Sacred vocal duets with continuo.
Sacred vocal trios, Unaccompanied.