{{explanation}}
3s + 4s start on opp sides

1-4
: 1s+4s set, cast to 2nd/3rd place (2s+3s step down/up bars 3-4).
5-8
: 1s+4s dance 1/2 RH across, then take promenade hold, 1M+4L facing out on
  Men's side & 4M+1L facing out on Ladies' side
9-12
: 1M+4L (out/up) & 4M+1L (out/down) dance 1/2 RSh Diag reel of 4
  with 2M+3M then pass RSh in middle ready for...
13-16
: 1M+4L (pass 3L RSh) & 4M+1L (pass 2L RSh) to dance 1/2 RSh Diag reel
  of 4 with 2L+3L. End 4L facing up followed by 1M, 1L facing down
  followed by 4M in the middle
17-24
: 4L+1M pass 3L RSh (at top) also 1L+4M pass 2L RSh (at bottom) to dance
  alternating tandem reels of 3 across. (Lead changes bar 19 & 23). At
  end Ladies followed by Men dance down/up sides
25-28
: 4 Men dance 1/2 Diag R&L with 3M+4M & 1M+2M crossing RH to start (top 2
  places Men's side, bottom 2 places Ladies' side)
29-32
: 4 Ladies dance 1/2 Diag R&L (top 2 places Ladies' side, bottom 2 places
  Men's side) End  2 4 (1) (3)