Factum est ut quaedam

Source: 
Kraków, Klastor OO. Karmelitów na Piasku (Carmelite Convent), Ms.5 (rkp. Perg. 13)
Folio: 
135r
Sequence: 
1
Feast: 
Cathedra Petri
Office/Mass: 
M
Genre: 
A
Position: 
2.1
Cantus ID: 
002844
Mode: 
4
Differentia: 
E01
Differentia database: 
1--h-g-h-jh-gf-e--4 19a
Addendum: 
214