Posui adjutorium*

Source: 
Stuttgart, Württembergische Landesbibliothek, HB.I.55
Marginalia: 
4
Folio: 
041r
Sequence: 
11
Feast: 
Cathedra Petri
Office/Mass: 
M
Genre: 
R
Position: 
2.2
Cantus ID: 
007411
Mode: 
1