1-8
: 1s+2s+3s dance RH across and LH across, staying in centre, all facing
  up, ready for ...
9-16
: 1s+2s+3s Promenade, 1s cast (bars15 & 16), **while** 2s dance to the top
  & curve into place
17-24
: 1s dance 1M+3s & 1L+2s dance 1/2 LSh reels of 3 across the dance; 1s
  pass LSh to dance 1/2 LSh reel across with other couple. 1s end BtoB
  in centre facing own side
25-28
: 2s+1s+3s set as Double Triangles, 1s+3s change places (LH Men's side, RH
  Ladies' side) to end 2 3 1 4
29-32
: 2s & 3s turn once round(RH on men's side, LH on men's side) **while** 1s
  & 4s turn  1.1/2 (RH on Men's side, LH on Ladies' side  2 3 4 1