{{explanation}}
2 chords - 2nd chord 3s+4s cross to opp sides

1-8
: 1s+2s & 3s+4s set, dance RH across, 1s & 4s cast out of ends to 2nd/3rd
  place (2s & 3s lead up/down).  2 1 (4) (3)
9-16
: 1s+4s dance RH across. 1M+4L face up, 4M+1L face down & dance 1/2 LSh
  Alternating Tandem reels of 3 on sides (2s & 3s dance loops at end)
17-24
: 1s+4s repeat, dancing LH across & 1/2 RSh Alternating Tandem reels of 3
  on sides
25-32
: Reels of 3 across, 1s & 4s, in prom hold with partners (1s RSh to 2L, 4s
  RSh to 3L). 1s end on Men's side (1M in 2nd place, 1L in 3rd
  place) **while** 4s end on Ladies' side (4M in 3rd place, 4L in 2nd
  place)
33-40
: 1L+4L change places RH & retain hands **while** 1M & 4M set, 1s+4s
  dance 1/2 RH across, 1s+4s turn partner RH (4 bars).  2 4 (1) (3)