Columbia subject headings:
Church music--Italy--Milan.
Duomo di Milano. Fabbrica.
Sacred vocal music--Italy--Milan--16th century--Manuscripts.
Harvard subject headings:
Church music--Italy--Milan--15th century--History and criticism.
Duomo di Milano--Catalogs.
Gaffurius codices
Music--Italy--Milan--15th century--History and criticism.
Princeton subject headings:
Church music--Italy--Milan.
Duomo di Milano. Fabbrica
Sacred vocal music--Italy--Milan--16th century--Manuscripts.