Here is a one-minute video of our Dave dancing his heart out back in 1992. He couldn’t stand or walk yet and he never exactly learned to crawl but when the music moved him, he could dance for hours.
The scooting movement that he uses in part of his dance is how he got from place to place before he could walk. Of course, he would go in a straight line, when he wanted to get someplace. Circles were strictly reserved for dancing.
If any other families have neat videos of their child with MECP2 Duplication dancing or doing other neat stuff, I would love to include them on this site.