1-8
: 1s+2s set, dance RH across 1/2 way & 2s+1s+3s dance 1/2 reel of 3 (1s
  pass 2s RSh)
9-16
: 1s+2s (centre couples) dance LH across as 3s+4s chase 1/2 way clockwise
  all end on opp sides (4)(1)(2)(3), 1s+4s & 2s+3s turn RH on sides
17-24
: All dance full reels of 4 on sides
25-32
: All set, 4s & 2s (in 1st & 3rd places) cast 1 place (1s+3s step up) &
  all circle 8H round 1/2 way to end 2 3 4 1