1-8
: 1s dance in & cast, meet below 2s & dance down, cast up round 3s, meet &
  dance up to top remaining in centre. 2s step in behind 1s (bar 8)
9-16
: 1s+2s dance Allemande
17-24
: 1s Petronella turn 3 times to end 1M between 2s at top facing down 1L
  between 3s facing up, 1s turn 3/4 RH to 2nd place own side
25-32
: 1s+3s dance “Slip Knot”: As the Knot, but on last 2 bars couples dance
  LH across 1/2 way