I am in FL so can't help you there!
For me sending me mail via the post office is one of the best way with your web site, cost of an hour, and a few referals would help. OH and if your playing anywhere close where I could come to see you.
You have to understanf our days are so busy that though we need your help it is hard to find a moment to stop and listen. It is easier to listen after hours.
Maybe offer a free show would help too!
.
Wish you could share how to tell someone that they sing flat and I am not interested! Have had performers call constantly and it is hard to say!
GOOD LUCK!