1-4
: 1s Petronella turn into middle **while** 2s cast up to 1st place, 1s+2s
  set
5-8
: 1s+2s Adv+Ret (1 step each) & set
9-12
: 1s Petronella turn to 1st place opp sides **while** 2s cast to 2nd
  place, 1s+2s set
13-16
: 1s cross RH, cast to 2nd place on own sides (2s step up 15-16)
17-20
: 1s pass dance 1/2 diagonal R&L with 1st corners (Man down, Lady up)
21-24
: 1s dance 1/2 diagonal R&L with 4th corners (Man down, Lady up). (3) 1
  (2)
25-32
: 1s cross for 1/2 LSh reels of 3 on opposite sides (1M+3M & 1L+2L pass
  LSH); All cross RSh & All set.  2 1 3