Columbia subject headings:
Music--500-1400--History and criticism.
Music--Manuscripts.
Troubadours.
Trouvères.
Harvard subject headings:
Music--500-1400--History and criticism
Music--Manuscripts
Troubadours
Trouvères.
Princeton subject headings:
Music--500-1400--History and criticism.
Music--Manuscripts.
Troubadours.
Trouvères.