Circa quartam vigiliam

Source: 
Roma, Biblioteca Vallicelliana, C.5
Folio: 
112r
Sequence: 
2
Feast: 
Sabbato post Cineres
Office/Mass: 
P
Genre: 
A
Cantus ID: 
200788
Mode: 
7
Differentia: 
3
Differentia database: 
1--l-l-m-l-k-jkJ--4 144o