everyone talks about the genius of Puccini's great operas but for me this is just as good, and an underrated work. The Qui Tollis section in particular is simply gorgeous!!
I was introduced to this and did piano accompaniment for a college choir. We toured in Montreal and played St. Jacques Cathedral (I believe). I was supposed to play pipe organ but am not an organist, so a classmate/organist crouched down below me and did the pedal work. Funny story. Great memories. Beautiful piece of work.