Credimus enim quia supplici

Source: 
Paris, Bibliothèque nationale de France - Département des Manuscrits, NAL 1535
Folio: 
097r
Sequence: 
1
Feast: 
Assumptio Mariae
Office/Mass: 
X
Genre: 
A
Position: 
9
Cantus ID: 
200942
Mode: 
8
Differentia: 
1
Differentia database: 
1--k-k-j-k-h-g--4 118a