1-8
: 1s petronella turn into centre, turn on opposite sides, turn into centre
  & turn back to places
9-16
: 1s cast 1 place, lead down below 3s, cast up to 2nd place opposite sides
  & turn 2H
17-24
: 2s+1s circle 4H round & back
25-32
: 1s+3s dance R&L