Sermone erat nitidus beatus

Source: 
Roma, Biblioteca Vallicelliana, C.5
Folio: 
046v
Sequence: 
10
Feast: 
Silvestri
Office/Mass: 
M
Genre: 
A
Position: 
1.5
Cantus ID: 
004870
Mode: 
7
Differentia: 
3
Differentia database: 
1--l-l-m-l-k-jkJ--4 144o