I am struggling with the not the Agnus Dei at the moment.
I like that fact that such an extended section can work as a four-part canon and I like the impression/illusion that the musical line is always ascending. (This seems to be a consequence of the generally rising phrases allied to the staggered entries.) But… and it’s a massive but… the overall sound, because of the simple and repetitive underlying chord structure, is not engaging! I’m thinking it sounds better as a three-part canon, but I haven’t come to any firm conclusions!
I have revised the Kyrie – extending each section, essentially repeating each one – once with English text, once with the Greek. This seems to work better and gives a better balance. I thought it may sound rather too repetitive but, I think, variation in the harmony parts avoids this.