Feb. 26, 2018, 12:26 a.m. (Message 69462, in reply to message 69458)
Thank you for that. I had videotaped my class dancing the Helix quite a while ago and then, when I next saw the video, could not remember what progressive figure it was or where I had found it. Now I will go into my collection of Alex's books and do a few more 'helix' dances.