Re: just out of curiosity...
Read 'Musicophilia' by Oliver Sacks. Interesting stuff about music and the brain. Hard to say for sure if abilities cross over from one thing to another. Music seems to use distinct parts of the brain. People with brain injuries and other issues often can maintain musical ablilites and sometimes even 'discover' new musical abilities they didn't know they had. Or they recover certain brain functions but lose the music.
Some people are fortunate to be just good at everything, but doing anything well involves 90% perspiration and 1% inspiration