If you had to call it "unison", it ain't unison. It ain't the same as somebody else. If you can hear that it's unison, and you have to name it something other than "unison", it ain't unison, you know what I mean? It's two guys playin', but one guy is playin' slightly out of tune, one is playin' slightly off meter.
Miles DavisMy father's rich, my momma's good looking. Right? And I can play the Blues. I've never suffered and don't intend to suffer.
Miles Davis