Dum fortis armatus custodit

Source: 
Cambridge, University Library, Mm.ii.9
Folio: 
178
Sequence: 
5
Feast: 
Dom. 3 Quadragesimae
Office/Mass: 
T
Genre: 
A
Cantus ID: 
002456
Mode: 
3
Differentia: 
4
Differentia database: 
1--k-k-k-h-k-j--4 96a
Extra: 
5 d