1-8
: 1s set, cast (2s step up), 1s set again & Petronella turn to end 1M
  between 3s facing up, 1L between 2s facing down
9-16
: 1s turn LH 4 times round **while** 2s+3s turn RH 4 times round
17-24
: 1s+2s+3s set, 1s Petronella turn to 2nd place opp sides **while** 2s+3s
  cross RH with partners. (2)(1)(3). All set & cross RH to own sides
25-32
: 2s+1s+3s circle 6H round & back