1-8
: 1s+2s also 3s+4s set & dance 1/2 RH across, 1s+4s dance 1/2 LH across &
  all set
9-16
: 2s+4s also 1s+3s dance Ladies' Chain
17-24
: 2s+4s also 1s+3s set & dance 1/2 RH across, 2s+3s dance 1/2 LH across &
  all set
25-32
: All dance Grand Chain 1/2 way (all starting on sides), set, 1s dance
  down to 4th place **while** 2s+3s+4s dance up 1 place