Hell, Kendall, tell 'em what the problem is. If they can't understand that, you don't want anything to do with 'em anyway.

Then teach the workshop. Man, you've got the experience to teach it, but RIGHT NOW your voice (you say) is gone. So share the experience.

And IS your voice gone? Or is it that when you sing you hear yourself in your head and you say, "That ain't me!" Or you hear a recording and you say, "I sound like, like, Elton John! (or worse)." You're hearing current self against your old self, and things change.

How do you know that your singing voice is gone for good anyway? That's why I say that RIGHT NOW your voice is, according to you, gone.

Can you talk? Then teach the class.