Qui post me venit ante

Folio: 
015v
Sequence: 
3
Office/Mass: 
V2
Genre: 
A
Position: 
M
Cantus ID: 
004493
Mode: 
7
Differentia: 
A2
Manuscript Reading Full Text (standardized spelling): 
Qui post me venit ante me factus est cujus non sum dignus calceamenta solvere