Escher’s Metamorphosis

1–

1c ½ turn RH twice while{4} 2c stand | ½ turn RH ;
3c ½ turn RH twice while{4} 4c stand | ½ turn RH while{4} 1c+2c RHA (1,2x,3,4x)

9–

1c+2c R&L while{8} 3c+4c RHA ; ½ R&L (both R&L start on sides), 1c & 3c end in promhold facing 2W & 4W, who pull back LSh, on centre line as 2M & 4M end on sides facing clw

17–

RSh Weasel reel with 1c & 3c in promhold, end in same places

25–

1c+2W & 4W+3c RHA while 2M+4M ½ turn BH & twirl away passing P RSh ;
1c+2M & 4M+3c LHA while 2W+4W ½ turn BH & twirl away, 4M+2W & 2M+4W take promhold facing out on M/W sides

33–

Bees of Maggieknockater reels: 4M+2W & 2M+4W ½ RSh Reel3 on M/W side ;
change to promhold with P for ½ LSh Reel3, end 4c facing 2c NHJ, 1c & 3c facing ends NHJ (1,4x,2,3x)

41–

1c & 3c change sides, W under M’s arm while 2c dance up under 4c arch (1x,2,4x,3) |
1c & 3c dance down under 2c & 3c arches (2,1x,3,4x) ;
2c & 4c change sides, W under M’s arm while 3c dance up under 1c arch (2x,3,1x,4) |
all ½ turn, LH on W side, RH on M side, 2c & 1c face out and up (3,2x,4,1x)

49–

Mirror reels4{6}, 3c & 4c start in and down (4,3,1x,2x) |
4c & 1c dance down & join BH while{2} 3c & 2c continue the reel{1} & join BH (3,4,2x,1x)

57–

3c+4c & 2c+1c ½ turn BH{1} to diag lines, then dance bars 2–6 of poussette |
½ turn BH & open out to sides next to P (M side: 4W,4M,1M,1W; W side: 3W,3M,2M,2W)

65–

All set | top 3 on M side cross diag RH with bottom 3 on W side ;
repeat LH & RH (M side: 2W,1W,1M,4M; W side: 2M,3M,3W,4W)

73–

2c & 4c ½ turn RSh | cast away while{4} 1c+3c set | petronella in tandem (2,3,1x,4x) ;
2c & 4c set | cross LSh while{4} 3M+1M cross RSh | set facing while{4} 3W+1W set facing | cross LSh & all face up/down on sides (2x,1,3x,4)

81–

1c+2c ½ R&L ; LHA while{8} 3c+4c R&L (both R&L start on sides) ending (1x,2,3x,4)

89–

1c ½ turn LH | stand while{4} 2c ½ turn LH twice while{4} 3c+4c LHA ;
3c ½ turn LH | stand while{4} 4c ½ turn LH twice (1,2,3,4)

Longer instructions are at https://my.strathspey.org/u/murrough/EschersMetamorphosis.pdf