Ecce ego vobiscum sum

Source: 
Oxford, Bodleian Library, MS. Canon. Liturg. 202 (olim 19314)
Folio: 
075v
Sequence: 
8
Feast: 
Sabbato in Albis
Office/Mass: 
M
Genre: 
A
Position: 
1.
Cantus ID: 
002513
Mode: 
?
Differentia: 
*