1–
: 1M,2W,3M & 4W Advance **while** P retire | and back ; all chase clw ½ (4x,3x,2x,1x)
9–
: Repeat [1–8] (1,2,3,4)
17–
: 1c+2c ½ R&L ; 1c+3c ½ R&L (2x,3x,1,4)
25–
: 1c+4c ½ R&L ; all turn P 1½ (2,3,4,1)

*Deviser's note* : if many dancers are complete beginners, like in a ceilidh, the advancing and retiring part may get into a mess. You may then adapt in two different ways.  
1. Bars 1–4 all men advance for 2 bars while all women retire, then all dance back to place, and bars 9–12 all women advance for two bars while all men retire, then all dance back to place.  
2. Those who start the dance advancing will always advance during the four times through, and those who start retiring will always retire, so that you can keep the shape of waves.