I have been experimenting with different versions of the “gloria chorus”. In the end, I’ve settled on a version which extends the tenor/bass chords and has more of a call-and-response feel. At first, I felt this version lost a bit of energy and drive, but I have come to like it and the effect is much tidier and seems to me to be really joyful.
I have also gone back to a full repetition of the last line for both part one and part two of each verse. I had removed this from the “part ones” because I feared too much repetition but a small edit (to finish the repetition with two crochets) and one small melodic change has allowed me to revert – and this is more in keeping with the “West Gallery” genre.