That's my opinion.
if you go to a proffesional and qualified voice coach, I'd bet you you'll be able to do what you want to do with your voice.
Or do this:
I'm about to beging taking voice lessons. In fact, I'm calling the voice coach tonite, to talk it over and stuff. Give me about two months, then I'll be able to tell you from my own experience wheter the lessons work or not.
