Miles' "Kind of Blue" is my favorite jazz record from 1959. In 1970 Miles invented fusion with "Bitches Brew" after seeing Hendrix. Miles added electric bass and electric guitar and lots of rhythm to his music. This spawned Herbie Hancock, Weather Report, Mahivishnu, Larry Coryell, Chick Corea, Stanley Clarke, etc, etc.
I recently saw documentaries on Miles and Jeff Beck. So if Miles was trying to be Jimi Hendrix with "Bitches Brew", was Jeff Beck trying to be Mile Davis after hearing "Jack Johnson"? Only two cuts on the full album, A side and B side. I just discovered this after watching the Jeff Beck doc. After hearing it, I think it's perhaps the very best of the fusion genre, at least Mile's "Right Off".