Generatio haec prava et perversa

Source: 
Vercelli, Biblioteca Capitolare, CLXX
Folio: 
056v
Sequence: 
1
Feast: 
Fer. 4 Hebd. 1 Quad.
Office/Mass: 
L
Genre: 
A
Position: 
B
Cantus ID: 
002935
Mode: 
8
Differentia: 
G1
Differentia database: 
1--k-k-j-k-h-g--4 118a
Manuscript Reading Full Text (standardized spelling): 
Generatio haec prava et perversa signum quaerit et signum non dabitur ei nisi signum Ionae prophetae