WHAT IF AN FSSP PARISH CELEBRATED AN ORDINARY FORM MASS COMPLETELY IN LATIN, AD ORIENTEM IN ONE OF THEIR CHURCHES DESIGNED IN THE PRE-VATICAN II FASHION AND AD ORIENTEM?
Let's say there is an FSSP parish that is willing to celebrate a monthly all Latin Ordinary Form Chanted Mass using their normal schola/choir to do so and the normal parts of the EF Mass chanted in Latin with the chanted Introit, Offertory and Communion antiphons. And let's say that there are no lay ministers involved except the altar boys, that the Mass is completely ad orientem and at the altar, (the chair is not used) and even the lectionary is read from the altar in the normal fashion of an EF Mass but using the new lectionary (could be in Latin or English) with the Latin Gradual chanted in place of the Responsorial Psalm, what would be lacking, especially if the Roman Canon is chosen and said in a audible but low voice?
From appearances, especially from the ad orientem point of view, the congregation would experience an almost identical Mass to the EF, especially if Holy Communion is distributed at the altar railing.
So the normative Latin Mass in the Ordinary Form celebrated in the manner highlighted above would appear to be almost (although certainly not quite) identical to its source the EF Mass, no?