Columbia subject headings:
Choruses (Mixed voices), Unaccompanied.
Harvard subject headings:
Antiphons (Music)
Art music
Choruses (Mixed voices) with organ.
Choruses (Mixed voices), Unaccompanied
Choruses (Women's voices), Unaccompanied
Masses
Motets
Sacred music
Scores
Princeton subject headings:
Choruses (Mixed voices) with organ.
Choruses (Mixed voices), Unaccompanied.
Choruses (Women's voices), Unaccompanied.