{{explanation}}
2 chords with 1L+3L passing LSh on 2nd chord to face other partner

1-8
: 1s+3s dance reel of 4, Ladies do not finish reel but turn right about to
  face clockwise
9-16
: All Ladies giving RH in centre & LH to partner wheel round to places
  but 2L & 4L pass LSh to face other partner
17-32
: Repeat bars 1-16 with 2s+4s dancing
33-40
: 1M & 3M facing partners corner set & turn RH to face other Lady, set &
  turn RH to face own corner
41-48
: 2L+1M+3M+4L dance reel of 4 across ending in original places
49-64
: Repeat bars 33-48 with 2M & 4M dancing
65-72
: 1L+3L set advancing & turn RH, facing partner set & turn RH
73-80
: All dance 1/2 Grand Chain & set & turn partner RH
81-96
: Repeat bars 65-80 with 2L & 4L dancing with1M & 3M ending in centre
97-104
: 1s+3s Bal-in-Line, turn ptnr RH (Ladies in centre) & Bal-in-Line, turn
  ptnr RH (Men in centre) & Ladies turn right about (LH to ptnr)
105-112
: All Men giving LH in centre & RH to partner wheel round anticlockwise to
  places
113-128
: Repeat bars 97-112 with 2s & 4s dancing