New release from Japanese Toshiya Tsunoda who was the first artist to be released on Häpna in 1999. This household name in the art of fieldrecordings has produced a discography of highly sublime recordings capturing the finest details of sound, and Ridge of Undulation is no exception. This new work is exploring sonic phenomena of very different magnitudes, from roaring waves at sea to experiments with high frequency sine waves and vibrating objects. Piezoceramic sensors were placed on the objects and the vibrations were transmitted in voltage, which can be recorded.

Toshiya Tsunoda is a Yokohama based artist who has studied at the Tokyo National University of Fine Art and Music. Tsunoda is concerned with the relation between sound space and cognition space and the hidden beauty in the tiniest sonic details. Since 1994, he has been operating the WrK label, which he co-founded with Minoru Sato. He has previously released works on the WrK, Selektion, Lucky Kitchen, Staalplaat and Häpna labels. His work has been shown at the ICC, Tokyo, and the Kawasaki city museum, among others.