I didn't think I'd see an article like this on HN of all places. But yeah, jazz, r&b, and rock are musical cousins and often borrow from each other. There was

I didn't think I'd see an article like this on HN of all places. But yeah, jazz, r&b, and rock are musical cousins and often borrow from each other. There was a discussion on /r/jazz on "Do average people (non-jazz fans) realize that jazz is improvisational?" And one answer is that average people don't realize how nuch improvisation is in music in general. The great rock guitarists often played improvised riffs and solos.