1-8
: 1s+2s turn partners 1/2 RH, stay in centre to dance 1/2 RH across, 1s+2s
  turn partner RH to finish on sides (1M facing out & up, 1L facing out
  & down)
9-16
: 2s+1s+3s dance reels of 3 on sides (1s giving RSh to 3rd corners, 2s
  dance in/down, 3s dance in/up)
17-24
: 2s+1s+3s Adv+Ret, 1s turn 2H (Pas de Basque) opening lower hands (1L RH,
  1M LH) into BtoB facing 1st corners
25-32
: 1s dance 1/2 diagonal reel with 1st corners, pass LSh, 1s dance 1/2
  diagonal reel with 2nd corners (3) (1) (2)
33-36
: 3s+2s change places RH on sides **while** 1s Petronella turn into lines
  of 3 across (1L between 3s, 1M between 2s). All set
37-40
: 2s+3s change places RH with partners **while** 1s Petronella turn to 2nd
  place own sides. All set 2 1 3