Columbia subject headings:
Dante Alighieri, 1265-1321--Knowledge and learning--Congresses.
Music--500-1400--History and criticism--Congresses.
Songs and music.
Harvard subject headings:
Dante Alighieri, 1265-1321--Knowledge--Music--Congresses.
Music--500-1400--History and criticism--Congresses.
Princeton subject headings:
Dante Alighieri, 1265-1321--Knowledge--Music--Congresses.
Music--500-1400--History and criticism--Congresses.