O vera summa sempiterna

Folio: 
200r
Sequence: 
12
Feast: 
Office/Mass: 
L
Genre: 
A
Position: 
3
Cantus ID: 
004086
Mode: 
*
Differentia: 
*
Manuscript Reading Full Text (standardized spelling): 
O vera summa sempiterna trinitas pater et filius et spiritus sanctus