Real name: Hitoshi Kojo

Effective period / Period of releases: 2001 - 2023

Japanese artist currently living in Brussels.

After creating various form of visual artwork and music in the 1980s and the early 1990s, in the late 1990s he began creating sound composition that combines recordings made by intuitively manipulating natural objects such as stones, plants, and discarded everyday items.
The recorded material is often adjusted to harmonize with each other, and sometimes combined with traditional instruments and voices to enhance the tonality of the piece.
However, within the composition's timeline, all elements are left open and treated equally, avoiding the creation of centralized structures. This approach remains the same in the occasional performances and installations.

The recordings are primarily released on his own label, formerly Octpia and currently omnimemento, and many of them are presented in handmade packaging by himself.
His earlier works under the alias Spiracle were released from other labels such as Drone Records, Mystery Sea, taâlem and Helen Scarsdale Agency.
Since moving to Europe in 2004, he has collaborated with other artists such as Michael Northam, John Grzinich, Yannick Dauby, Manu Holterbach, Jonathan Coleclough, Colin Potter.
In 2020, he began releasing simpler field/sound recording works under the alias sonomono.