Columbia subject headings:
Choral music--History--To 1500.
Fortune--Songs and music--History and criticism.
Motets--History--To 1500.
Harvard subject headings:
Fortune--Songs and music--History and criticism.
Part songs--15th century--History and criticism.
Part songs--500-1400--History and criticism.
Princeton subject headings:
Fortune--Songs and Music--History and criticism.
Vocal music--15th century--History and criticism.
Vocal music--500-1400--History and criticism.