Felix Hess, a Dutch sound artist who is also a physicist. While recording the trajectories of boomerangs in South Australia, he happened to hear the frogs' chirping habits, which inspired him to start collecting them. This is privately released his only record work in 1985. The chirps were recorded in Australia and Mexico, and the music is a kind of minimal music in which the chirps of other insects are synchronized with the continuous sound of the frogs' chirps. It goes without saying that the croaking of a frog can have various lengths, ranges, sounds. It's also reminiscent of Masaaki Takano's "Shizukutachi". Total lovely sounds wrapped in a "strange" comfort.