Ecce ego Joannes vidi ostium

Source: 
Arras, Bibliothèque municipale, 893 (olim 465)
Folio: 
448r
Sequence: 
8
Feast: 
Matthaei
Office/Mass: 
V
Genre: 
A
Position: 
M
Cantus ID: 
002511
Mode: 
1
Differentia: 
12
Differentia database: 
1--h-h-hg-f-g-gfed--4 75a