Si iniquitates observaveris domine domine

Source: 
The Poissy Antiphonal
Folio: 
350r
Sequence: 
4
Feast: 
Pro defunctis
Office/Mass: 
V
Genre: 
A
Position: 
1,4
Cantus ID: 
004899
Mode: 
7,8
Differentia: 
G2
Manuscript Reading Full Text (standardized spelling): 
Si iniquitates observaveris domine domine quis sustinebit