When I sing, it sounds absolutely nothing like Idina Menzel. Which is probably why she's a world-renowned singer, and I'm not.
But now what I'm wondering is... if you could somehow remove my brain and put hers into my skull instead, would she be able to make my voice sound amazing? (Obviously my voice won't sound like hers — no two voices sound identical. But would it sound good?)
In particular, is learning to sing well simply a matter of learning how to do it correctly? Or does it require a physical increase in actual muscle strength? Because a brain transplant would obviously deliver knowledge, but wouldn't have any effect on muscle strength.