Onkyokei

The Onkyo music movement or Onkyokei (音響系, Onkyōkei) (translation: "reverberation of sound"[1]) is a form of free improvisation, emerging from Japan in the late 1990s.

[2] Some artists commonly associated with Onkyō include Toshimaru Nakamura, Tetuzi Akiyama, Sachiko M, and Taku Sugimoto, among others.

The Off Site, a venue in Tokyo, is home to the Onkyo music movement, which is characterized by improvisation, minimalism, and "quiet noise".

[3] Onkyo improvisation, "explores the fine-grained textural details of acoustic and electronic sound".

[1] It influenced the development of electroacoustic improvisation, or EAI, a genre with which it is strongly intertwined.

Taku Sugimoto, whose music is commonly associated with Onkyo
Taku Sugimoto, whose music is commonly associated with Onkyo