Ecce ego Joannes vidi ostium

Source: 
London, British Library, printed book IB.6753 (Augsburg Antiphoner 1495, olim AA Impr. 1495)
Folio: 
080v
Sequence: 
3
Feast: 
Comm. Evangelistarum
Office/Mass: 
E
Genre: 
A
Position: 
1
Cantus ID: 
002511
Mode: 
1
Differentia: 
D1
Differentia database: 
1--h-h-g-f-gh-gfed--4 72b