Missus est Gabriel angelus ad

Folio: 
015r
Sequence: 
10
Office/Mass: 
E
Genre: 
A
Position: 
7
Cantus ID: 
003794
Mode: 
8
Differentia: 
34b?
Manuscript Reading Full Text (standardized spelling): 
Missus est Gabriel angelus ad Mariam virginem desponsatam Joseph