I was a pretty high level athlete (in swimming so not a pro, but did compete at an international level) and I can back this up too.

“Natural Talent” is a thing. But that only really applies to the very very top end of the spectrum. Like professional athletes absolutely have genetic advantages over a normal human. But you can get 98% of the way there through just pure determination, grit, and practice.

I imagine it’s not quite the same for music, but unless you’re trying to become a billboard level musician or someone who travels around putting on shows, you can absolutely become “good enough” just from (in this case) 12 years of dedicated practice.