Elevamini portae aeternales et introibit

Source: 
Worcester, Cathedral - Music Library, F.160 (olim 1247) (facsimile)
Folio: 
027
Sequence: 
12
Feast: 
Nativitas Domini
Office/Mass: 
M
Genre: 
A
Position: 
1.3
Cantus ID: 
002631
Mode: 
5
Differentia: 
1
Addendum: 
013v
Manuscript Reading Full Text (standardized spelling): 
Elevamini portae aeternales et introibit rex gloriae
Manuscript Reading Full Text (MS spelling): 
Elevamini porte eternales et introibit rex glorie | Domini est terra