I've always wondered - would you be known as a voice -teacher- or a
voice -coach-? Or vocal coach, vocal teacher? What would the proper
"title," from your perspective.
Yours is a common question. The answer is
it depends on what "world" you are in. If you are in the classical world
what I do would be called a voice teacher. In the pop and musical
theater world someone who works vocal technique is a voice coach. In the
classical world a vocal coach is a pianist who works on musical issues
with a singer. So I usually refer to myself as a voice trainer, like a
personal trainer at the gym. I show people how to make their voice work
better through exercising it a particular way. That is a more
specialized skill, and is less common.