I’m trying to enter in ARs for this, and the back (art already uploaded) just credits everyone, but not to the specific track(s) they’re on.
I could put the 7 choruses, plus the soloists, on all the tracks in Part 2 (which is the vocal part). Or I could put it on the release group—wait, no, that’s not allowed. The only way to share it with the two releases in the release group seems to be to put it on the recordings; otherwise I have to duplicate it on both releases.
(Can we even really be sure both orchestras played on each track?)