This Sunday at Mass, the Alleluia will be the piece I have attached below. The refrain is from "O Filii et Filiae" with an arrangement of my own (organ, descant, a couple of trumpets, and timpani), with the verse of the day sung to Psalm Tone 2D.

I have a similar Alleluia for Easter III through Pentecost which I'll attach on my next post on this thread (same adaptations/arrangements, but without the brass and timps).

BMP