1-8
: 1s+2s+3s Promenade
9-16
: 1s+2s dance Poussette to end 1L between 2s facing down & 1M between 3s
  facing up
17-24
: 2s+1s+3s set twice 1s turning on to own sides (bars19-20), 2s+1s+3s set
  twice 1s turning to centre BtoB facing own sides (bars 23-24)
25-32
: 1s dance Double Triangles with 2s+3s & cross to 2nd places