I think some people have a better head for it than others. I have a friend who at the age of 13 would learn songs on guitar by playing them back in his head whi

I think some people have a better head for it than others. I have a friend who at the age of 13 would learn songs on guitar by playing them back in his head while he sat in school during the day, and then go play it in the evening. I had nowhere near that kind of ability, with about the same number of hours of music training up to that point in our lives.