Mensuram bonam et confertam

Source: 
Roma, Biblioteca Vallicelliana, C.5
Folio: 
181v
Sequence: 
7
Feast: 
Dom. 2 p. Pent.
Office/Mass: 
V2
Genre: 
A
Position: 
3M
Cantus ID: 
003745
Mode: 
2
Differentia: 
1
Differentia database: 
1--f-f-f-ed-cd-d--4 153e