1-8
: 1M leads 3L up to top (2L steps down), 1M dances round to place as 3L
  casts to 2nd place, 1L with 3M repeat
9-16
: 3s followed by 1s dance down the middle, 1s dance up to top **while** 3s
  dance up & turn RH to original places
17-24
: 1s cast 1 place, lead down between 3s & cast up to 2nd places