Yes, it does. Apparently this is the original chant in the churches of the city of Rome itself, until it was superseded sometime after the year 1100.Like another chant you sent in this very topic months ago, it's interesting because it sounds very "Eastern".
This is wonderful!Here's something:
[Old Roman Chant - Tecum Principium]
The text is part of Psalm 109.This is wonderful!
I found Latin text and English translation buried in the YouTube comments:
Tecum princípium in díe virtútis túae:
in splendóribus sanctórum, ex útero ante lucíferum génui te.
Díxit Dóminus Dómino méo:
Séde a déxtris méis: donec pónam inimícos túos,
scabéllum pédum tuórum.
With Thee is the principality in the day of Thy strength:
in the brightness of the saints, from the womb before the day star I begot Thee.
The Lord said to my Lord: Sit Thou at My right hand until I make Thy enemies Thy footstool.