{{explanation}}
Couples dance in 2 groups of 3, numbered 1 2 3 from each end of the set i.e. 1 2 3 3 2 1

1-4
: 1s cross RH **while** 2s+3s dance 1/2 RH across. 1s+3s also each pair
  of 2s change places LH on the sides
5-16
: Repeat bars 1-4 another 3 times (end couples cross RH, middle couples
  dance 1/2 RH across); couples in 1st & 2nd places also couples in 3rd
  & 4th places also couples in 5th & 6th change places LH on the sides

: All finish 3 1 2 2 1 3
17-20
: 3rd couples set to 1st couples. 3rd couples cross down/up **while** 1st
  couples dance up/down
21-24
: 3rd couples set to 2nd couples. 3rd couples cross down/up **while** 2nd
  couples dance up/down
25-26
: 3rd couples (in centre) dance 1/2 RH across
27-28
: 3rd couples cast up or down to ends of set **while** 1st & 2nd couples
  step down/up
29-32
: 3rd couples turn 1.1/2 RH **while** 1st & 2nd couples Adv+Ret.
   3 1 2 2 1 3