It might come down to an improvisation, but wondering if folks on this forum have suggestions for written fanfares that they use. We'll be singing Gloria VIII (Missa de Angelis) and this year I'll include a short introductory fanfare (I think this comes after the incipit?). Any links to sources in the public domain particularly appreciated.
I would assume it’s a one off in one of the hundreds of collections of random organ works. I searched for a good while and have yet to find that engraving, sadly.
If you're doing the Missa de Angelis Gloria in D Major, you could borrow the first page and a-half of the Finale of Vierne 1, and then after the RH trill on A at the V7 chord, resolve to a big D Major chord and play the Missa de Angelis incipit on a loud reed to set up the celebrant's intonation. ... it could work! (Then play the whole movement as your Easter postlude.)
I have always improvised this - ending (as described above by CGM) with a very distinct cadence leading into your Gloria's beginning, chant or otherwise. If you improvise it you could use snippets of the setting you are singing use as motif material.
Otherwise, I really like Liam's suggestion just above. It's perfect! You might have to modulate into your Gloria's key though.
We did it at my monastery for Holy Thursday, Easter Vigil and Easter. It depends on who the organist is that day. Yes, there is more than one. In fact, the monastery has FOUR! You could email the monastery at info@summitdominicans.org and ask and I'm sure someone will help you. I remember when Sr. Maria would do it and still wear Birkenstocks playing the pedals!
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