O beate Petre claviger

Source: 
Roma, Biblioteca Vallicelliana, C.5
Folio: 
091r
Sequence: 
9
Feast: 
Cathedra Petri
Office/Mass: 
V
Genre: 
A
Position: 
M
Cantus ID: 
203383
Mode: 
1
Differentia: 
9
Differentia database: 
1--h-h-g-f-gh-gfede--4 304a