Lux orta est justo alleluia

Source: 
Vercelli, Biblioteca Capitolare, CLXX
Folio: 
123r
Sequence: 
6
Feast: 
Comm. Apostolorum
Office/Mass: 
M
Genre: 
A
Position: 
3.2
Cantus ID: 
003651
Mode: 
6T
Differentia: 
F
Differentia database: 
1--m-m-k-lm-l-k--4 T7aA
Manuscript Reading Full Text (standardized spelling): 
Lux orta est justo alleluia rectis corde laetitia alleluia