Iste est qui contempsit vitam

Source: 
Aachen (Aix-la-Chapelle), Domarchiv, G 20
Folio: 
356v
Sequence: 
1
Feast: 
Comm. unius Confessoris
Office/Mass: 
M
Genre: 
V
Position: 
01
Cantus ID: 
007003a
Mode: 
8
Extra: 
144v
Indexing notes: 
On the top margin of this folio there is written: "celestia regna" with neumes