Columbia subject headings:
Music--15th century--Manuscripts--Congresses.
Trent codices--Congresses.
Harvard subject headings:
Music--Manuscripts--Europe--15th century--Congresses.
Sacred vocal music--Europe--Manuscripts--15th century--Congresses.
Trent codices--Congresses.
Princeton subject headings:
Music--Manuscripts--Europe--Congresses.
Sacred vocal music--Europe--Manuscripts--Congresses.