She's a classically trained musician, from what I've heard about her. I just haven't heard it in her music. Being a great musician and singer still isn't guaranteed to make good music.
It reminds me of listening to some of these virtuoso guitar players, who can play any scale thrown at them, but it becomes boring after 5 minutes, because the shock value of their skill has wore off.
I'm not saying it's not entertaining, it just doesn't hold my attention for very long.