{{explanation}}
Start:  3 couples in Triangular set with 4th Lady in middle  
2 chords - 1st chord all bow/curtsey to 4L, 2nd chord bow/curtsey to partner

1-4
: 1s+2s+3s face partner, join 2H & away from centre & back into place (HS
   - Ladies left foot, Men right foot start) **while** 4L faces 1s &
  sets (HS setting)
5-8
: 1s turn 2H twice **while** 4L dances round them by RSh into middle to
  face 3s
9-16
: 4L+2s+3s (both in prom hold) dance reel of 3 (4L LSh to 3s).  4L end in
  middle facing 1s
17-24
: 4L sets to 1s, then 3s, then 2s & faces 1s, 1s+2s+3s turn partner 3/4 2H
  to end NHJ facing anticlockwise (Ladies on left of
  partners) **while** 4L dances LSh round 1s to join LH with 1M's RH
25-28
: All dance 2 places anticlockwise round
29-32
: 2s+3s turn partners 1.1/4 2H (in 3rd/1st place) **while** 1s+4L
  circle 3H 1/2 round to left (2 bars), 1L pulls back RSh , dances into
  middle to face up as 1M+4L 1/2 turn 2H to become new 2nd couple.
  End 3s [4L+1M] 2s with 1L in centre

{{explanation}}
Repeat 3 times - each Lady has turn in centre.  End  -  all bow/curtsey to 4L in centre