Mochi I love your raspberry pun! And you are correct, this is more fun than "exercise".
Chris, indeed I have been practicing a lot of Charleston. The "swing" inspiration was added after. There is a kind of music out there called "Electro Swing" but it builds on rhythms from the 20's as much as from the 50's. But my heart is in the 1920's.
alaskagirl, I learned looking at other Youtube videos, and I retained some moves, dropped out others. I used to attend Zumba classes: some moved are taken from there.
Texstyle, Robin, Brie, yes, it is so much fun I can't help smiling. I do it at the gym in front of a mirror or in that park and people constantly come to me asking me what it is I'm doing because it looks like I have the most fun doing it. So that's why I thought of putting it on video, with the music (because usually people can't hear it). The songs are so cheerful, how can anyone feel sad listening to it?