{{explanation}}
2 chords, 2nd chord 3s & 4s cross to opp sides

1-8
: 1s & 4s dance in, cast down/up 1 place (2s & 3s step down/up 3-4); 1s+4s
  dance RH across
9-12
: 2s+1s & 4s+3s dance LH across, 1L & 4L face out ready for ...
13-16
: 1L followed by 1M casts up round 2L & dances down to 3rd/2nd place Men's
  side **while** 4L followed by 4M, casts down round 3L to 2nd /3rd
  place Ladies' side
17-24
: 1s+3L+2M dance tandem reel of 3 (LSh to 3L in 4th
  place) **while** 4s+2L+3M dance tandem reel of 3 (LSh to 2L in top
  place). 1s finish on the man's side, 4s finish on the ladies' side
  in 2nd & 3rd places
25-28
: 1s & 4s face diagonally in, set advancing & petronella 1 place
29-32
: 1s & 4s 1/2 turn partner RH, pull back right shoulder & dance out to
  sides. End 2 4 (1) (3)