Dum fortis armatus custodit

Source: 
Paris, Bibliothèque nationale de France - Département des Manuscrits, NAL 1535
Folio: 
050r
Sequence: 
6
Feast: 
Dom. 3 Quadragesimae
Office/Mass: 
S
Genre: 
A
Cantus ID: 
002456
Mode: 
3
Differentia: 
6
Differentia database: 
1--k-k-k-h-k-jh--4 97a