I didn&#x27;t think I&#x27;d see an article like this on HN of all places. But yeah, jazz, r&amp;b, and rock are musical cousins and often borrow from each other.<p>There was a discussion on &#x2F;r&#x2F;jazz on &quot;Do average people (non-jazz fans) realize that jazz is improvisational?&quot; And one answer is that average people don&#x27;t realize how nuch improvisation is in music in general. The great rock guitarists often played improvised riffs and solos.