Tu es Petrus*

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (facsimile)
Folio: 
326
Sequence: 
9
Feast: 
Petri, Pauli
Office/Mass: 
M
Genre: 
R
Position: 
1.3
Cantus ID: 
007788
Mode: 
7
Addendum: 
228r
Manuscript Reading Full Text (standardized spelling): 
Tu es Petrus*
Manuscript Reading Full Text (MS spelling): 
Tu es petrus