Ex quo facta est vox

Folio: 
020v
Sequence: 
1
Office/Mass: 
E
Genre: 
A
Cantus ID: 
002750
Mode: 
1
Differentia: 
?
Manuscript Reading Full Text (standardized spelling): 
Ex quo facta est vox salutationis tuae in auribus meis exsultavit in gaudio infans in utero meo alleluia
Manuscript Reading Full Text (MS spelling): 
Ex quo facta est vox salutationis tue in auribus meis exultavit in gaudio infans in utero meo aeuia
Indexing notes: 
meant to be Fer. 6? (typical ember day) but preceding rubric indicates Fer. 5 //differentia difficult to read