Nostalgia explained

This is a clip from The Butterfly Ball. As I understand it, this was the test animation for an entire feature based on the album.

It turns out that the Australian ABC network used it as filler quite frequently in the early 70s, so it causes nostalgia in Australians of a certain age.

The clip was also used as filler on Night Flight in the mid 80s, with absolutely no explanation as to what the hell it was, so it causes a slightly different nostalgia in Americans of roughly the same age.