Trio face trio RR.
Many variations in handing, polite turns and shoulder exist
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
Note: Cosh explicitly tells 1c to pass Lsh in [9-24]; however the Rsh pass is quite common, and nicknamed »Mairi's Divorce«.
note: In the BH turns in PdB, 1c dances backwards to the sidelines on the last step, but may also break earlier and dance out forwards