1-8
: 1s+2s+3s advance for 2 steps & retire, turn partners RH ending in centre
  for promenade
9-16
: 1s+2s+3s dance Promenade
17-24
: 1s dance down the middle below the 4s (2s+3s+4s step up 19-20), dance up
  between 4s & cast down to 4th place
25-32
: All circle 8H round & back