Nos ejus norma rege serva

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
216r
Sequence: 
4
Feast: 
Benedicti
Office/Mass: 
M
Genre: 
V
Position: 
01
Cantus ID: 
600951a
Mode: 
1S
Addendum: 
P: 300