The first half of each time through is fugal (really a canon, but everyone calls it a fugue) in which 2nd lady does exactly what her partner does, just two bars later. Patti Cobb was bandleader and arranged three tunes to be canons so the women dance to the recorder and the men dance to the fiddles.  Jim Oakden is on recorder and the fiddlers are Shira Kammen and Caroline McCaskey (the 2019 US Scottish Fiddle champion).  The jig tunes are Sailor's Wife, A Hundred Pipers, and Lady Elizabeth Cole.