1-8
: 1s set, cast (2s step up); 2s+1s+3s Adv, 2s+3s Ret **while** 1s turn LH
  to face 1st corners
9-16
: 1s turn 1st corners RH to end 1M between 3s facing down, 1L between 2s
  facing up. 1s set & change places LH up/down & cast to left to 2nd
  place own side. Bar 16: 2s+3s face diagonally in.
17-24
: 2s+3s Set & Rotate. 3 1 2
25-28
: 1s cross RH **while** 3s+2s 1/2 turn partners RH to face down/up NHJ;
  All set, 1s to each other across, 3s+2s up/down
29-32
: All dance 6H 1/2 round to the left. 2 1 3
33-40
: 2s+1s+3s dance Grand Chain (2s cross, 1s+3s change place on sides). 2 1
  3