{{explanation}}
2 chords: 2nd chord 2s & 4s cross to opp side

1-8
: 1s+2s also 3s+4s Set & Rotate for 6 bars (set, cast 1 place round &
  change places RH with partner) & all set on sides. Men's
  side: 2M 2L 4M 4L, Ladies' side: 1L 1M 3L 3M
9-24
: All dance Interlocking Ladies' Chains:

: **9-12** Ladies dance 1/2 RH across (Men dance into partner's
  place), 1L+4M, 2L+3M, 3L+2M & 4L+1M turn LH

: **13-16** 1/2 Ladies' Chain across: 1L+2L also 3L+4L change places RH
  (Men dance into place beside them) Ladies turn Man they meet

: **17-24** Repeat bars 9-16 back to position at bar 8
25-32
: All join hands on side, set & circle 8H 1/2 round, Bars 31-32: Ladies
  set **while** 1M+2M also 3M+4M change places RH
33-40
: 4s+3s+2s dance Circulating Knot:

: **33-34** All turn RH into allemande hold, 4s+2s face down, 3s face up

: **35-37** All dance 1/2 way round set (4s+3s start to Right, 2s curve to
  Left) Bar 29:- all release Right hands

: 30-32 Men pass partners in front & all continue LH turn to sides. End 2
  (3) 4 (1)