Missus est Gabriel angelus ad

Source: 
Tours, Bibliothèque municipale, 149
Folio: 
506v
Sequence: 
2
Feast: 
Annuntiatio Mariae
Office/Mass: 
M
Genre: 
A
Position: 
2.3
Cantus ID: 
003794
Mode: 
8
Differentia: 
1
Differentia database: 
1--k-k-j-kj-h-g--4 123a