Tu es Petrus et super

Source: 
Tongeren, Onze-Lieve-Vrouw-Kerk (Our Lady's Church), 64 (olim IV)
Folio: 
208r
Sequence: 
7
Feast: 
Cathedra Petri
Office/Mass: 
L
Genre: 
A
Position: 
2
Cantus ID: 
005208
Mode: 
7
Differentia: 
C1
Differentia database: 
1--l-l-lm-l-k-jk--4 144c