Clarifica me pater apud

Folio: 
135r
Sequence: 
5
Office/Mass: 
L
Genre: 
A
Position: 
B
Cantus ID: 
001826
Mode: 
1
Differentia: 
G1
Differentia database: 
Indexing notes: 
Is there another antiphon after this one? (Confitemini? or something similar?); and, for what usage?