{{explanation}}
Part 1: Wave (16 &frac12; bars)

1–
: 1c set | cross RH ; set | cross RH **while{8}**  
  2c stand{2} | set ; cross RH | set **while{8}**  
  3c stand{4} ; set | cross RH **while{8}**  
  4c stand{6} | set (1,2x,3x,4)
9–
: 1c+2c & 3c+4c  set facing up/down | set to P ;
  all cross RH | 1c & 4c lead to centre & face opp side, BtoB with P
  **while{2}** 2c & 3c dance to ends
17–17&frac12;
: All clap (&frac12; bar)

{{explanation}}
Part 2: Pirate Triangles (23 bars)

1–
: 1M+4M & 1W+4W NHJ set as DTr with 2c & 3c |
  2c & 3c &frac12; turn BH **while{2}** 1c & 4c PdB &frac12; round P to face own side ;
  repeat, 1c & 4c face opp side
9–
: 1c & 4c dance out beyond sides | set pulling back LSh ; set facing in | 1c/4c cross LH/RH **while{8}**
  2c & 3c set | chase{4} &frac12; way clw inside 1c & 4c | set (3x,1,4,2x)
17–23
: Circle8 &frac12; way to L ; all cross RH (2x,4,1,3x) | set R & face clw (total 7 bars)

{{explanation}}
Part 3: Whirlwind (19 bars)

1–
: All chase &frac12; way clw ; 3c+1c & 4c+2c &frac12; RHA | &frac12; turn RH on sides & 1c face 4c (3x,1,4,2x)
9–
: 3c & 2c set to P | &frac12; turn LH **while{4}** 1c set to 4c | &frac12; turn LH on sides ;
  3c+4c+1c dance down 1pl | turn P RH **while{4}** 2c cast to top (2,3,4,1)
17–19
: 2c+3c & 4c+1c set R facing on sides, set L facing in diagonally | set R facing P (total 3 bars)


{{explanation}}
Part 4 (8 bars)

1–
: Circle8 to L, pivot & circle back to R (2,3,4,1)