Trio face trio RR.
Many variations in handing, polite turns and shoulder exist
Note: older instructions tell 1c to turn once LH on 23-24; the current (revised) instructions leave that unspecified.
The original tune is a hornpipe
Cnr-Chain: 1c turn cnr RH ½ | cnrs turn LH ; 1c turn same cnr RH ½ | 1c turn LH to enter next figure
Note: Cosh explicitly tells 1c to pass Lsh in [9-24]; however the Rsh pass is quite common, and nicknamed »Mairi's Divorce«.
A quote: »the key that has always made this dance so wonderful is the flirting that dancing couple can do on bars 9-10 and 13-14 ; <...> if you actually set to your partner, advancing and at the last moment just slipping in BtoB to face and turn the appropriate corner, it's tremendous fun. The moment is all too rare, as apparently few teachers teach it this way, but it's a moment I savour.