Quid est quod me quaerebatis

Source: 
Praha (Prague), Strahovská knihovna (Library of the Royal Canonry of Premonstratensians at Strahov), DE I 7
Folio: 
060v
Sequence: 
10
Feast: 
Dom. 1 p. Epiphaniam
Office/Mass: 
V2
Genre: 
A
Position: 
M
Cantus ID: 
004521
Mode: 
8
Differentia: 
G1
Differentia database: 
1--k-k-j-k-h-ghg--4 120a
Manuscript Reading Full Text (standardized spelling): 
Quid est quod me quaerebatis an nesciebatis quia in his quae patris mei sunt oportet me esse alleluia