Aperiens Petrus os suum dixit

Source: 
Stuttgart, Württembergische Landesbibliothek, HB.I.55
Marginalia: 
7
Folio: 
119r
Sequence: 
1
Feast: 
Vincula Petri
Office/Mass: 
M
Genre: 
A
Position: 
2.2
Cantus ID: 
001445
Mode: 
8
Differentia: 
wd
Differentia database: 
1--k-k-j-kj-h-ghg--4 211a
Extra: 
wd