{{explanation}}
2 chords - 2nd chord 3s & 4s cross to opposite sides

1-4
: 1s+4s dance in, take NHJ & couples Adv+Ret. As 1s+4s retire 2s+3s step
  up/down to form lines of 4 across
5-8
: 1s+4s cross down/up centre, 1s NHJ passing between 4s, 4s+1s dance
  between 2s/3s, turning 2s/3s with nearer hand to finish on sides 2 (4)
  1 (3)
9-12
: 4L+1M & 4M+1L (middle couples) Adv+Ret
13-16
: 4s+1s cross, 4M+1L (middle couple Ladies' side) NHJ dancing between
  4L+1M & turn corners into lines across, 4s (between 2s) facing 1s
  (between 3s)
17-20
: 1s+4s Adv+Ret up/down set
21-24
: 1s+4s turn person opposite 2H to finish on sides 2 4 (1) (3)
25-32
: 8H round and back 2 4 (1) (3)