Dum medium silentium tenerent

Source: 
Rome, Santa Sabina, XIV L1 ("Humbert" codex)
Folio: 
237v
Sequence: 
3
Feast: 
Dom. p. Nat. Dom.
Office/Mass: 
L
Genre: 
A
Position: 
R
Cantus ID: 
002461
Mode: 
8
Manuscript Reading Full Text (standardized spelling): 
Dum medium silentium tenerent omnia et nox in suo cursu iter perageret omnipotens sermo tuus domine a regalibus sedibus venit alleluia