Quomodo fiet istud angele dei

Source: 
Wien, Österreichische Nationalbibliothek - Musiksammlung, 1890
Folio: 
020r
Sequence: 
1
Feast: 
Fer. 4 Q.T. Adventus
Office/Mass: 
L
Genre: 
A
Position: 
B
Cantus ID: 
004563
Mode: 
7
Differentia: 
yc
Differentia database: 
1--l-l-m-l-k-jhhG--4 143c
Manuscript Reading Full Text (standardized spelling): 
Quomodo fiet istud angele dei quia virum in concipiendo non pertuli audi Maria virgo Christi spiritus sanctus superveniet in te et virtus altissimi obumbrabit tibi
Manuscript Reading Full Text (MS spelling): 
Quomodo fiet istud angele dei quia virum in concipiendo non pertuli audi Maria virgo xpisti spiritus sanctus superveniet in te et virtus altissimi obumbrabit tibi
Indexing notes: 
RK: "falsch gebunden" ?? However text from folio to folio suggests that the binding is correct. These would appear to be the ember days??