Columbia subject headings:
Music--Italy--16th century--History and criticism.
Music--Italy--17th century--History and criticism.
Requiems--History and criticism.
Harvard subject headings:
Music--Italy--16th century--History and criticism
Music--Italy--17th century--History and criticism
Requiems--History and criticism.
Princeton subject headings:
Music--Italy--16th century--History and criticism.
Music--Italy--17th century--History and criticism.
Requiems--History and criticism.