{{explanation}}
2 chords  -  2nd chord 3s & 4s cross to opp side

1-4
: 1s+2s also 3s+4s dance RH across. 1L & 4L finish facing out, 2M facing
  down, 3M facing up
5-8
: 2s+3s dance LH across **while** 1s & 4s chase clockwise 1/2 round to
  opposite end
9-16
: Parallel RSh reels of 4 on sides. 4 2 (3) (1)
17-24
: All change places RH on sides retaining hands & all Bal-in-Line. 1M+4L
  also 1L+4M turn LH and Men face out. 2 4 (1) (3)
25-32
: 1s+4s dance Ladies' Chain, Men casting up/down on sides to start. Men
  omit polite turn at end ready for RH across in next time through