1-8
: 1s set & cast 1 place (2s step up 3-4), 4s set & cast up 1 place (3s
  step down 7-8) 2 1 4 3
9-16
: 2L & 3M petronella turn into centre & set, 2M & 3L petronella turn into
  centre & set, all end facing partner up or down ready for ...
17-24
: 2s+3s dance 1/2 reel of 4, 3M & 2L (with partner following) chase 1/2
  way clockwise behind standing couples back to places 2 1 4 3
25-32
: 1s+4s Set+Link (no hands); all 4 couples dance DoSiDo with partners 2 4
  1 3