I have succeeded in singing in the exact same range as Tori Amos (Alto) and Tracy Chapman. I have a very bluesy, soulful voice, the bues, of course, is, by and large, a male genre. A lot of people have told me they thought Tracy Chapman was a guy when they first heard her. I learned You Got a Friend, which I do one octave above James Taylor, I had this little nasal thing going which made me sound a little like Carole King.
I don't know...maybe sounding like Tracy Chapman is not so bad, i just wonder what I could do to make my singing voice a little more feminine though.