Some years ago, I saw a website that was meant to help you figure out
whether a dance worked or not.  You could plug in the moves, and little
colored dots or squares would move, "dancing" the figures.

 

Does anyone know about this?  There are some students at the University
of Chicago who want to do a physics project about contra dancing, and
this would be useful to them.

 

Thanks.

 

Jo Mortland

Chicago