[sackbut]

I play classical and jazz (which extends to every other genre), and while I think eye contact is somewhat overrated, it is so vastly more important to establish communication "out of the page" in classical music due to the many many more ritardandos, accelerandos, tempo changes, subdivision changes, meter changes, cessuras, fermatas, and the list goes on, all not uncommonly happening in the same movement of a larger work. The only genre that could exceeds what classical music requires would have to be the many more rhythmically complex world music traditions. What I see on a daily basis in popular music or even jazz doesn't hold a candle to any of those.