Haec est dies quam fecit

Source: 
Aachen (Aix-la-Chapelle), Domarchiv, G 20
Folio: 
219r
Sequence: 
2
Feast: 
Conceptio Mariae
Office/Mass: 
V2
Genre: 
A
Position: 
M
Cantus ID: 
002997
Mode: 
4
Differentia: 
E1b
Differentia database: 
1--h-g-h-k-gfE-e--4 47b
Extra: 
006r
Indexing notes: 
text slightly altered; this folio is blank after this antiphon.