O crux splendidior cunctis

Folio: 
090v
Sequence: 
1
Office/Mass: 
V
Genre: 
A
Position: 
M
Cantus ID: 
004019
Mode: 
1
Differentia: 
D2
Indexing notes: 
change of hand at the top of f. 091r (until 94); a replacement section of folia?;