1-8
: 1s turn RH retaining hands briefly in centre & 1L crosses down RSh
  round 2M **while** 1M dances RSh round 2L. 1s end BtoB between 2s
  facing opp sides
9-16
: Modified "Spurtle":

: **9-12**  1s dance 1/2 reel of 4 with 2s & 1/2 turn partner RH to
  face 3s

: **13-16**  1s dance 1/2 reel of 4 with 3s & 1s cross RH to 3rd place own
  side
17-24
: 3s+1s set, dance 1/2 RH across; 2s+1s set, dance 1/2 LH across remaining
  in centre facing up ready for ...
25-32
: 1s+2s dance Promenade, bars 31-32 1s cast & 2s dance up to top.  2 1 3