1-4
: 1s & 3s set & Petronella in Tandem into centre of set facing each other
  (1s with backs to 4s & 3s with backs to 2s)
5-8
: 1s & 3s set, change places LH to face opposite side couples
9-16
: All dance parallel RSh reels of 4 across the set
17-18
: 2s+1s also 4s+3s dance 1/2 RH across
19-22
: 2s & 4s facing in centre change places LH (2 bars) and curve to left 2s
  into 3rd place and 4s into 1st place
23-24
: All four couples set
25-32
: All circle 8H round & back. 4 1 2 3

{{explanation}}
Repeat in Strathspey time and then twice in Reel time to regain original positions