Isti sunt martyres Christi

Source: 
Benevento, Archivio Capitolare, V 20
Folio: 
188v
Sequence: 
3
Feast: 
Gervasii, Protasii
Office/Mass: 
L
Genre: 
A
Position: 
1
Cantus ID: 
003440
Mode: 
2
Differentia: 
1
Differentia database: 
1--f-f-e-ed-cd-d--4 153c