{{explanation}}
Square set, Ladies BtoB in centre facing partners

1-8
: All set & change places RH with partner; repeat back to places
9-16
: Men chase clockwise 1/2 round **while** Ladies set twice; all turn opp
  person 1.1/2 RH (Men now in centre facing in)
17-20
: Men, join hands & set twice pulling back RSh on bar 20 to face out
  (facing new partner)
21-32
: Interlocking reels of 4 (couples dance 1/2 LH across in centre). End
  with Men BtoB in centre (facing new partner again)

: Repeat from new positions with new partners (Bars 9-12 Men set / Ladies
  chase 1/2 round). End opp original place. Repeat twice more back to
  original place