Gratias ago deo meo quia

Source: 
Arras, Bibliothèque municipale, 893 (olim 465)
Folio: 
420r
Sequence: 
7
Feast: 
Laurentii
Office/Mass: 
M
Genre: 
A
Position: 
3.
Cantus ID: 
002970
Mode: 
4
Differentia: 
8
Differentia database: 
1--h-g-h-j-g-eg--4 31a