Quomodo fiet istud*

Source: 
Tongeren, Onze-Lieve-Vrouw-Kerk (Our Lady's Church), 64 (olim IV)
Folio: 
214v
Sequence: 
7
Feast: 
Annuntiatio Mariae
Office/Mass: 
C
Genre: 
A
Position: 
N
Cantus ID: 
004563
Mode: 
7
Differentia: 
*