Petrus quidem servabatur in

Source: 
Firenze (Florence), Arcivescovado - Biblioteca, s.c.
Folio: 
147r
Sequence: 
1
Feast: 
Petri
Office/Mass: 
M
Genre: 
A
Position: 
2.2
Cantus ID: 
004286
Mode: 
1
Differentia: 
4
Differentia database: 
1--h-h-g-f-g-ghg--4 66l