I am going to start singing with the schola at a TLM. First off: November 9. The director said that they have been doing it a while, so don't rehearse "the responses," adding quickly, "but of course, the ite missa est depends on what the deacon decides or how good a musician he is." Going through the Corpus Christi videos (which are for a low Mass), reading the L. Usualis, and a fine missal I have, I can't figure out what he means.
So...what are the responses that the choir does that I should be practicing?
Ideally, the deacon or priest would sing "Ite missa est" with the melody corresponding to the plainchant Mass ordinary which the choir sang. That is, with a melody based on the melody of the Kyrie. But you may find that something different happens. You might sing the ordinary with the setting called Mass II, but then hear the deacon or priest sing the "Ite missa est" from Mass VIII, simply because he knows it best. In that situation, the choir should follow the lead of the deacon and sing the companion "Deo gratias".
He means that the Ite Missa Est and its response (Deo gratias) change based on the season and Ordinary you are singing - or based on the priest/deacon's abilities. If the setting being used is one the choir is unfamiliar with, this is certainly something you should rehearse with them.
The choir should also know all of the responses - but if they already know them, they don't change as often as the Ite dialogue does.
Don't feel that you have to sing everything right away, including the bits that weren't rehearsed. You won't know until the moment whether the priest sings the preface dialogue with the simple tone or the solemn tone.
Thanks--it's Kenneth, but I keep forgetting this one doesn't post my name automatically. And there wasn't anything attached to your first note about a guide book, but that sounds helpful.
Oh, I see, where it says "Common Tones of The Mass." The "R" is in the middle and I didn't see what they were. I will learn them but probably sit them out the first time.
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