Two musicians made a song about wind and swings. The animation lets that song breathe instead of competing with it. What you're left with is something that stays with you longer than a minute should be able to, the kind of thing you come back to when you need to remember what quiet can do.
Kaze no Buranko is a single music video made for the song of the same name by Yamori, the duo of Ryouko Moriyama and Akiko Yano. The animated piece was featured on Minna no Uta, a program broadcast by NHK. As a music release, its focus is on accompanying the track rather than telling an extended story.