1-8
: 1s cast 1 place (2s step up) **while** 3s set, 1s+3s dance 3/4 L&R (left
  hand start).  2 3 1
9-16
: 2s+3s+1s dance Grand Chain (2s across to start). 1s end in 3rd place
  facing out
17-24
: 1s cast up 1 place (3s step down), turn RH 1.1/4 times & dance RSh
  round 2nd corners to face 1st corners
25-32
: 2s+1s+3s dance reels of 3 on sides (1s LSh to 1st corners) & 1s cross RH
  to 2nd place own side