Haec est quae nescivit*

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (with hymnal)
Folio: 
242r
Sequence: 
5
Feast: 
Assumptio Mariae
Office/Mass: 
V
Genre: 
A
Position: 
3
Cantus ID: 
003001
Mode: 
*
Addendum: 
P: 354