{{explanation}}
3s+4s cross to opposite side on 2nd chord

1-4
: 1M dance towards the top and behind 1M ending between 1W and 2W **while{4}** 4M dance towards the bottom and behind 4W ending between 3W and 4W
5-6
: The two triplets advance two steps leaving the women to 2M and 3M
7-8
: 1M+4M retire two steps **while{2}** 2M+4M taking the women's outer hands help them rotate to form a new triplets
9-12
: 2M+3M repeat bars 5-8
13-16
: 1M+2M and 3M+4M TurnLeft¾ facing his Woman
17-18
: All set to partner
19-22
: 1s+2s and 3s+4s half rights and lefts (2x,1x,4,3)
23-24
: All set to partner
25-28
: 2s+1s (2s lead) cast off to 4th and 3rd position **while{4}** 4s+3s (4s lead) dance to 1st and 2nd position (4,3,1x,2x)
29-32
: All couples dance Allemande turn to the right
33-40
: All eight hands round and back