Petrus autem servabatur in

Source: 
Zutphen, Stadsarchief en Stedelijke Bibliotheek, 6
Folio: 
085r
Sequence: 
2
Feast: 
Petri
Office/Mass: 
M
Genre: 
A
Position: 
3.1
Cantus ID: 
004286
Mode: 
1
Differentia: 
G1
Differentia database: 
1--h-h-hg-gf-gh-g--4 66r