Sparked by the air of social upheaval in 1968, John's song "Revolution" spawned three very different recordings: Revolution 1, Revolution 9, and Revolution (the single version). Today, in the first of a two part episode, we look at how Revolution 1 gave birth to Revolution 9, and discover the mesmerizing missing link between the two. Former New York Times music critic Allan Kozinn helps us deconstruct Revolution 9, and to make sense of why John created such a challenging recording in the first place.