Alleluia ego sum vitis vera

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (facsimile)
Folio: 
306
Sequence: 
4
Feast: 
Marci
Office/Mass: 
M
Genre: 
A
Position: 
3.
Cantus ID: 
001342
Mode: 
1
Differentia: 
1
Addendum: 
219r