Propter intolerabiles*

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
247r
Sequence: 
1
Feast: 
Ordin. Gregorii,8
Office/Mass: 
V
Genre: 
R
Cantus ID: 
007439
Mode: 
*
Addendum: 
P: 364