I practice my saxophone three hours a day. I'm not saying I'm particularly special, but if you do something three hours a day for forty years, you get pretty good at it.
Kenny GI don't play the traditional Charlie Parker songs. But I do improvise and I do create with my instrument, and that to me is jazz. But there are people who use the word 'jazz' only in a traditional sense, and they would be offended by that, and that's fine.
Kenny G