Servus Servorum Dei

Pope St. Gregory the Great, while not the first Servant of the Servants of God, he coined this term, which is still used by Popes today. What humility--to so apply put this title to himself.
I wonder what St. Gregory, would say concerning the upcoming changes of the Roman missal that he receives much credit for even to this day....
Gregorian chant, we owe thanks to St. Gregory the Great for this also, would he recognize the Gregorian chant for today?
Here is a nice picture of St. Gregory's altar. 

St. Gregory, counsul of God, I pray, that you please ask St Michael not sheath his sword, for we need his help now.  For we are battling forces, within our holy church, for which we need your help and the help of all the angels and saints.  Amen †