I went to my first appointment, and apparently, I have an extremely large vocal range; the lowest pitch I can do is lower than the lowest that most men can do, and the highest pitch I can do is higher than the highest most women can do. I was also able to sustain an "s" sound for 44 seconds, showing I have a large lung capacity. The speech therapist seemed impressed. I was worried about tone more than pitch, but she said the female voice I did for her was already very good and usable. So, maybe I don't have much to worry about.