1–
: 1c+2c RHA ; LHA
9–
: 1c lead down the middle and up
17–28
: 1c casts off behind own lines, the other couples following {6} and lead up {6}, 1c finish facing down, 2c+3c+4c forming arches
29–32
: 1c dance down, the others step back on [32] (to 2,3,4,1)

{{explanation}}
(An unofficial variant is for 3c+4c to also dance RHA, LHA on [1–8]