I started learning when I was 10. I can play most instruments, I have always, always found that practice makes perfect. I most of all can play the guitar, piano, and drums. I learned to read music at 11, but I can also play by ear. I'm now 58, so I've been playing a long time. The easiest way is just do it regardless of weather or not you can read music or not. Memorize every note and chord, it will come to you, that is how I learned to play motzart and all the classical giants, I can listen and identify most every chord because I have ever chord and note memorized that I have been able to learn in all my years of playing. Memorization is the absolute key.