Erat enim in sermone verax

Source: 
Roma, Biblioteca Vallicelliana, C.5
Folio: 
071v
Sequence: 
8
Feast: 
Fabiani, Sebastiani
Office/Mass: 
M
Genre: 
A
Position: 
1.3
Cantus ID: 
002653
Mode: 
8
Differentia: 
2
Differentia database: 
1--k-k-h-k-l-k--4 99d