George Gershwin was arguably one of the world's first jazz masters or at least classical-jazz fusion. Ever heard of him? Or Miles Davis?
Yes, of course we all know Gershwin, but his accomplishments are not in jazz, but in more classical works influence by many genres.
Miles Davis was a favorite of those hanging out in the dark bars and coffee houses in the fifties. I remember going into one of those tune in drop out temples of nihilism and hating it and their music then.
Davis may have been a good musician, but his jazz not.
Do not want to insult you, but I still hold that jazz and hip hop and rap do ugly things to the human brain and how it works.