Comment by deviser Gregor Trinkaus-Randall on Scottish Country Dance teachers Facebook page, July 2018

Please note that during bars 5-12 in Northern Harmony in Celebrating Fifty Years, couples 2 & 3 are doing rights and lefts while the first couple does their track. This was only recently caught by me, the author, because I never taught it from that book. Please put in an errata slip.  

Gregor Trinkaus-Randall started dancing in Boston in 1974. While living in Wisconsin, he and his wife, Vickery, founded the Madison group, which is now an affiliated group of the RSCDS. Gregor is a Boston Branch teacher and has danced wifh the Demonstration Team and the New Caledonians performing group. Tom Pixton chose the title tune from among his own compositions.