Haec autem senior venerabilis

Source: 
Roma, Biblioteca Vallicelliana, C.5
Folio: 
013v
Sequence: 
2
Feast: 
Sabae
Office/Mass: 
M
Genre: 
A
Position: 
2.5
Cantus ID: 
202061
Mode: 
5
Differentia: 
1
Differentia database: 
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