Hi Don....Ok, maybe it wasn't clear. I was asking you, if you thought Puccini would have..umm..'approved'(for lack of a better word), of a female vocalist singing 'Nessum Dorma'..as in Jackie's performance, both because of her age, range(soprano) and gender.
Next part, but related....
I posted the two, Judy and Dan's version of the same song('Since You've Asked')..BUT in the two versions, they changed just a couple of lyrics, so Dan's version is geared to singing to a woman, and Judi's is to a man....unlike Puccini's which is pretty well set, as to ONE set of lyrics...but with a soprano(Jackie), instead of a tenor, and NO lyric change...and sticking to the original..
Now go back, and re-read the first paragraph. See if that is clearer.

GfS