In tuo adventu erue nos

Source: 
Aachen (Aix-la-Chapelle), Domarchiv, G 20
Folio: 
014r
Sequence: 
6
Feast: 
Dom. 1 Adventus
Office/Mass: 
P
Genre: 
A
Cantus ID: 
003302
Mode: 
1
Differentia: 
G1a
Differentia database: 
1--h-h-g-f-gh-gg--4 66i
Extra: 
003r
Indexing notes: 
differentia is... | differentia is difficult to see on the film;