1-8
: 1L dances towards partner, pulls back RSh & 1L followed by 1M casts off
  & crosses to opp side (2s step up); 1s+2s set
9-16
: 1M dances towards partner, pulls back LSh & 1M followed by 1L cast up &
  cross to own side (2s step down); 1s+2s set
17-24
: 1s Petronella turn twice to opp sides & turn 1.1/2 RH remaining in
  centre (2s step in) ready for ...
25-32
: 1s+2s dance Poussette. 2 1