{{explanation}}
2s & 4s start on opp sides

1-8
: 1s+2s also 3s+4s dance RH across; 1s & 4s chase clockwise 1/2
  round **while** 2s+3s dance LH across. 4 (2) 3 (1)
9-12
: 4s+2s also 3s+1s pass each other RSh on sides (2 bars), 2s & 3s chase
  clockwise 1/2 round (2 bars) **while** 4s+1s dance LH across (2 bars)
  & cross LH with partner to form 2 lines of 4 across set
13-16
: Repeat 9-12 from new positions to form lines up/down
17-20
: Repeat 9-12 from new positions to form lines across
21-24
: Repeat 9-12 from new positions to form lines up/down. 4 (2) 3 (1)
25-32
: 4s+2s also 3s+1s turn 1.1/2 RH to change places; 2s+4s+1s+3s dance 1/2
  RSh reels of 3 on sides. 3 (1) 4 (2)