” This was mostly really complex and fast but very fluid moves, with the legs; not so much with the upper body.”
Sure sounds like Shuffledancing.
https://www.youtube.com/watch?v=FuiMQPc5aKA&pp=ygUPU2h1ZmZsZSBkYW5jaW5n
Fascinating. Couldn’t have done even at the right age.
I like that!
Looks like someone might want to introduce these kids to tap dancing. Same idea wither more polished presentation