Aperiens Petrus os suum dixit

Source: 
Klosterneuburg, Augustiner-Chorherrenstift - Bibliothek, 589
Folio: 
035r
Sequence: 
4
Feast: 
Petri, Pauli
Office/Mass: 
V
Genre: 
A
Position: 
8
Cantus ID: 
001445
Mode: 
8
Differentia: 
G2
Differentia database: 
1--k-k-j-k-h-ghg--4 120a