Thanks so much Panzade.
OK, this has definitely been interesting. It looks like her singing is definitely not bad, maybe pretty good. Good enough that I shouldn't talk her out of singing at her school's talent show, for example. (They have a wide range of "talent" there, including some kids who really should have been talked out of it, going by what other people have told me.)
That's actually how this all started -- she hasn't been much of a singer (she's tried but wasn't that great), and then about five months ago in talent show rehearsals (she was in a group dance number) she had to listen to another kid's butchering of the same song over and over, which was driving her crazy, and she sort of absently started attempting to do it better, and got pretty good at that one song. Then has been branching out from there.
So then she was talking about singing in the next talent show, and while that wasn't the only reason I wanted some outside feedback on her singing ability, it was part of it.
I really wasn't expecting some of the next-level stuff I've been getting here. ("Musical future" et al.) I recently asked her, "If you turn out to have a really great voice, what would you want to do with it?" She shrugged and said she wouldn't actually want to be an international pop star or anything, pretty much the highest level she'd want to reach is being the lead singer in a band made up of her friends, playing some local gigs.
She was interested in what has been said here about preserving her voice, though, because she definitely does want to SING, even if on a small stage. She's now more interested in taking some sort of voice lessons for that purpose. I'm going to start looking around for that -- I have some starting points in mind.
So, THANKS, and if anyone has any further feedback I'm interested. This is very much blind man and the elephant (deaf woman and the singer) -- I just have to kind of put together an idea from the various bits of information I can get.