1-8
: 1s dance RSh round each other moving down (2s step up) & end BtoB in
  double triangle position (1L facing up to 2s & 1M down to 3s), all
  set, 1s turn 4th corner RH
9-16
: 1s turn 1st corner LH & all chase clockwise 1/2 way (1M between 3s at
  top, 1L between 2s at bottom)
17-24
: 1s change places RH up/down & cast to right into 2nd place own side &
  All turn partners RH (3) 1 (2)
25-32
: 1s dance Diag R&L. 2 1 3
33-40
: 2s+1s+3s circle 6H round for 3 bars, pivot left & chase back to places