Si coram hominibus tormenta

Folio: 
358r
Sequence: 
20
Office/Mass: 
V2
Genre: 
A
Position: 
2
Cantus ID: 
004881
Mode: 
7
Differentia-Old: 
?
Extra: 
146r
Indexing notes: 
There appears to be a patch over the place where the differentia might have been.