{{explanation}}
Square Set

1-8
: All Ladies dance LH across **while** Men dance Highland Schottische
  setting (4 bars). Ladies dance LSh round partner to end BtoB facing
  partner
9-16
: All set & dance La Baratte :

: Men 1/2 turn Lady RH & retains hand but at arm's length from each other

: Men retrace steps with Lady turning right under Man's arm briefly into
  Allemande hold (Man behind Lady facing Ladies' original place) &
  releasing Ladies' RH she turns under Man's left arm until almost in
  original places

: Couples change places LH to opposite places
17-24
: All Promenade anticlockwise to original places
25-32
: All Petronella-in-Tandem 1 place to right, set & turn partner RH