Qui operatus est Petro in

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
230r
Sequence: 
12
Feast: 
Pauli
Office/Mass: 
M
Genre: 
R
Position: 
1.1
Cantus ID: 
007480
Mode: 
5
Addendum: 
P: 330