Adest pauper Servatius dives

Source: 
Aachen (Aix-la-Chapelle), Domarchiv, G 20
Folio: 
380v
Sequence: 
4
Feast: 
Transl. Servatii
Office/Mass: 
M
Genre: 
A
Position: 
2.2
Cantus ID: 
200133
Mode: 
5
Finalis: 
G
Differentia: 
B1
Differentia database: 
1--k-k-l-j-k-j--4 132a
Extra: 
168v
Indexing notes: 
Quite clearly a differentia of "c-c-d-b-d-b";