In illa die vos cognoscetis

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
074r
Sequence: 
15
Feast: 
Ascensio Domini
Office/Mass: 
M
Genre: 
V
Position: 
01
Cantus ID: 
007234za
Mode: 
2
Addendum: 
P: 148