Hodie Simon Petrus ascendit

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
231v
Sequence: 
1
Feast: 
Petri, Pauli,8
Office/Mass: 
X
Genre: 
A
Cantus ID: 
003122
Mode: 
8
Differentia: 
*
Addendum: 
P: 333