1-4
: 1s set & Petronella turn (2s step up bar 3-4)
5-8
: 1s+2s set, on bar 6 1s set right & turn on left to face 2s (1L facing 2M
  & 1M facing 2L) to finish in line across, 1s turn 2s 2H to finish 1L
  facing 1st corner with 1M behind her
9-12
: 1s dance 1/2 RSh Alternating Tandem diagonal reel with 1st corners to
  end 1M followed by 1L facing 3M (Lady's 2nd corner)
13-16
: 1s dance 1/2 RSh Alternating Tandem diagonal reel with 2nd corners to
  end in the middle facing up NHJ (Lady curving round to the right to
  finish on Man's right).
17-20
: 1s lead up to top & cast to 2nd place own sides
21-24
: 1s turn RH to face up  **while** 2s+3s set & turn RH 1/2 way to face up
  ready for ...
25-32
: 3s+1s+2s dance Allemande.  2 1 3