Tu es pastor ovium princeps

Source: 
Vercelli, Biblioteca Capitolare, CLXX
Folio: 
116r
Sequence: 
4
Feast: 
Cathedra Petri
Office/Mass: 
V
Genre: 
A
Position: 
M
Cantus ID: 
005207
Mode: 
1
Differentia: 
D3
Differentia database: 
1--h-h-g-f-g-gfed--4 75d
Manuscript Reading Full Text (standardized spelling): 
Tu es pastor ovium princeps apostolorum tibi traditae sunt claves regni caelorum