Isti sunt duae olivae et

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
227r
Sequence: 
25
Feast: 
Joannis, Pauli
Office/Mass: 
M
Genre: 
V
Position: 
01
Cantus ID: 
007015a
Mode: 
8
Addendum: 
P: 324