Though not terribly prolific, Frédéric Back is a terribly important filmmaker. Here is a link to a boxed set of his collected works, as advertised an distributed by an organization operating in Back’s spirit: http://bit.ly/1HXNAl6
The recorder theme is very pretty. There are lots of nice backgrounds and textures and transitions. The story is kind of wild-eyed, to the point of silliness. Why would anyone want to destroy the sun? They’re referring to industrial polluters, of course, and they should do. But the perfidy of these polluters is overstated, and therefore unconvincing, and even annoying. Fight fair, even when you’re in the right!