Columbia subject headings:
Choruses, Secular (Mixed voices), Unaccompanied.
Choruses, Secular (Women's voices), Unaccompanied.
Harvard subject headings:
Choruses, Secular (Mixed voices), Unaccompanied.
Choruses, Secular (Women's voices), Unaccompanied
Princeton subject headings:
Choruses, Secular (Mixed voices), Unaccompanied.
Choruses, Secular (Women's voices), Unaccompanied.