1-8
: 1s dance in & cast 1/2 way round set. (1L anticlockwise, 1M Clockwise) ,
  meet each other, set & change places RH **while** 3s set, lead across
  the middle of the set, set to each other & change places RH
9-16
: 2s+4s repeat bars 1-8 with 2s casting off to begin & 4s setting and
  crossing over.
17-24
: All set twice to partners & set twice to corners.
25-32
: 1s+3s dance RH across & LH across back.
33-40
: 2s+4s repeat bars 25-32
41-48
: 8H round & back