Columbia subject headings:
Harvard subject headings:
Feininger, Laurence K. J. (Laurence Karl Johann), 1909-1976.
Music--Italy--500-1400--History and criticism--Congresses.
Music--Manuscripts--Italy--Trento--Congresses.
Trent codices.
Princeton subject headings:
Feininger, Laurence K. J. (Laurence Karl Johann), 1909-1976--Congresses.
Sacred vocal music--Italy--Trento Region--15th century--Congresses.
Sacred vocal music--Italy--Trento Region--15th century--Manuscripts--Congresses.
Trent codices--Congresses.