Columbia subject headings:
Church music--Catholic Church--16th century--History and criticism.
Isaac, Heinrich, approximately 1450-1517. Choralis Constantinus.
Propers (Music)--History and criticism.
Harvard subject headings:
Church music--Catholic Church--16th century.
Counterpoint--History
Isaac, Heinrich, approximately 1450-1517. Choralis Constantinus.
Propers (Music)--History and criticism.
Princeton subject headings:
Church music--Catholic Church--16th century--History and criticism.
Isaac, Heinrich, approximately 1450-1517. Choralis Constantinus.
Propers (Music)--History and criticism.