Circle, all C face cclw.
Trio face trio RR.
Many variations in handing, polite turns and shoulder exist
Note that both times the couple moving UP makes the arch.
Formation: couples around the room in heading anti-clockwise, nearer hands joined, ladies on the outside.
Couples round the room facing anticlockwise, ladies on the men's right. Start with ladies' left hands on men's right shoulders, men's right arms loosely around ladies' waists.
Note: Cosh explicitly tells 1c to pass Lsh in [9-24]; however the Rsh pass is quite common, and nicknamed »Mairi's Divorce«.
Repeat part B 7 times, with 2W, 3W, 4W, 1M, ... 4M each in turn in the centre. On bars 9- the W/M in the centre first sets to the P, then to the opposite M/W. In bars 33- the W/M first sets to the M/W on the L (seen from inside) of her/his original position, then the M/W opposite.
repeat part A
(An unofficial variant is for 3c+4c to also dance RHA, LHA on [1-8]
A new couple starts every 16 bars.
[square backets mark additions by person entering the dance into SCD Database]