Angeli domini domino benedicite in

Source: 
Sankt Gallen, Stiftsbibliothek, 391
Folio: 
123
Sequence: 
3
Feast: 
Michaelis
Office/Mass: 
L
Genre: 
A
Position: 
4
Cantus ID: 
001399
Mode: 
4
Differentia: 
ob
Differentia database: 
1--h-hg-h-j-g-e--4 27k
Manuscript Reading Full Text (standardized spelling): 
Angeli domini domino benedicite in aeternum
Manuscript Reading Full Text (MS spelling): 
Angeli domini domino Benedicite in aeternum
Indexing notes: 
differentia added by a later hand?