Two weeks later, the Beatles added the final touch: the piano crash that hangs in the air for nearly a minute. George Martin had every spare piano in the building hauled down to the studio, where five men (John, Paul, Ringo, Martin, and Mal Evans) played the same E-major chord, as Geoff Emerick turned up the mikes to catch every last trace. By the end, the levels were up so high you can hear Ringo’s shoe squeak.