Haec est virgo*

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (facsimile)
Folio: 
268
Sequence: 
2
Feast: 
Brigidae
Office/Mass: 
L
Genre: 
A
Position: 
R
Cantus ID: 
003006
Mode: 
*
Addendum: 
200r
Manuscript Reading Full Text (standardized spelling): 
Haec est virgo*
Manuscript Reading Full Text (MS spelling): 
Hec est virgo