Is there a choral setting of the Missal chants in which the choir supports and adds something to the chanting of the people? Something with passages in fauxbourdon or quasi-descants at cadential points? I've googled every combination of terms I could think of, and found Noel Jones's fine SAB setting, which I will use in the future when we need a cap. singing, but I am wondering if something exists that will give a bit more sparkle, without disrupting the singing of the congregation?

I'll write my own someday, but I'm happy to buy something if it already exists.

In my parish, our only English setting of the ordinary of the Mass (Kyrie, Gloria, Credo, Sanctus, Agnus) is the Roman Missal chants. Mass VIII or IX are used once or twice a month on holy days or Masses of Our Lady when there is a small enough crowd for each person to have a Gregorian Missal, or when there is an all-inclusive leaflet printed, but Sunday after Sunday is the Missal chants.

For Easter, we are going with the English; it is in the hymnals and missalettes (therefore no leaflet for the high mass to lay out and pick up between the 999 other low masses) and so ingrained in the collective memory that the singing is tremendously strong (i.e. no cantor, minimal organ) and will 1) let the people sing the Gloria for the first time in months and 2) demonstrate to the visiting CEOs that this is a parish where everyone sings and is happy to be in church. Not my call, but I see the advantages of this.