Are there tools or techniques around to "benchmark" singers? What I mean is: if I'm not performing up to my goals, I want to know what I'm lacking and what type of training I need to go through.
Also, I'd like to get a grip of my physical limitations so I don't waste my time trying to overcome them, but rather direct my music to work around them.
Suppose that I record my voice while singing and take a look at the spectrum. What does good singing "look like"?
Am I on the right track here? Is there such a thing?
I have a voice coach and although he does say when I've performed brightly or not, I don't understand his means to do so. Even if he explains them to me, I'd also like to develop my own references and measures when it comes to singing, because sometimes I don't like the way I sound, I feel it's different from great singers and I don't know exactly what is sounding off to me.
I intend to look for a more "scientific" way of measuring progress and comparing to great singers. I'll leave this question open until I've made some progress or someone contributes something in this regard.