<...snip...>. My wife has a good ear and she said the same (about her voice).<...>
For me it's not so much her voice, but the tiny details that an accomplished singer embellishes a melody with, timing, phrasing, creative pitch control, vibrato (not one speed/intensity for everything but what is appropriate to each note), dynamics, and a zillion other subtle nuances. The art is in the details.
This is not to be misunderstood as being critical. The recordings are good, and they are successful. But as an adequate singer myself, who is in a band with a fantastic singer, and also critically listens to great singers if I don't evaluate what is good and better about other singers, I would have no reference to improve my own singing.
She has had a long, successful career and is making the absolute best of what she has.
My first voice is my saxophone, and I wish I could sing as well as I play sax, but I don't think I have the physical equipment for that.
Insights and incites by Notes