{{explanation}}
2 chords on 2nd chord 3s +4s cross to opposite sides

1-8
: All set to partners & 1M+2L also 3L+4M cross over RH, 1L+2M also 3M+4L
  cross over LH & all cross RH
9-16
: 2s+1s also 4s+3s dance RH across, 1s+4s dance LH across
17-24
: 2s+1s also 4s+3s dance reels of 4 across (2M+1L also 4L+3M passing LSh
  to start as partners cast into reel)
25-32
: 1L followed by 4M dance up between top couple & cast round top man (2M)
  & dance down to 3rd/2nd places **while** 4L followed by 1M dance down
  between bottom couple & cast round bottom Man (3M on Ladies side)
  to 2nd/3rd places & all turn LH  2 4(1)(3)