Nos quasi senes levioris

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
239r
Sequence: 
5
Feast: 
Laurentii
Office/Mass: 
M
Genre: 
V
Position: 
01
Cantus ID: 
007229a
Mode: 
8
Addendum: 
P: 348