Starting formation - Lines of four, with centers facing in, and the ends
of each line facing the same (in or out) direction. The end dancers
move forward around the outside, passing right shoulders with three
moving end dancers, and turn one quarter in (90°) to stand beside the
third person passed, facing the center of the set as a couple.
Simultaneously, the center four dancers Pass Thru, turn their backs to
their momentary partners, Partner Trade with their new partners, and