音楽家。東京芸術大学作曲科卒業。2002年に音楽レーベルATAKを設立、国内外の先鋭的な電子音響作品をCDリリース。
代表作に「ATAK000+」、「ATAK010 filmachine phonics」など。
2009年、初のピアノソロ・アルバム『ATAK015 for maria』をリリース。
2010年には『アワーミュージック 相対性理論+渋谷慶一郎』を発表。
以後、TBSドラマ『Spec』、映画「死なない子供 荒川修作」、2012年公開の「セイジ 陸の魚」「はじまりの記憶 杉本博司」など映画、テレビの音楽を立て続けに担当。
また国内外でマルチチャンネルによるサウンドインスタレーションを発表、コンサートも行うなど多彩な活動を展開している。
Keiichiro  Shibuya is a Japanese artist and musician who produces some of the most  progressive electronic sound in Japan. Born in Tokyo, 1973. He  graduated with a degree in composition from Tokyo National University of  Fine Arts and Music. In 2002, he established ATAK, which functions not  only as a music label, releasing CDs of domestic and overseas  cutting-edge electroacoustic works, but also embraces creators in  various fields such as design, network technology and so on, as well as  being a kind of “platform” to develop dynamic new work. Later, in 2002,  Keiichiro Shibuya was involved in the commemoration CD of founding of  Mori Art Museum.
In 2003, he released a CD ATAK002 Keiichiro  Shibuya + Yuji Takahashi in collaboration with Yuji Takahashi, a  Japanese composer and pianist. Later in2003 ATAK made a domestic concert  tour with Icelandic Stilluppsteypa. In2004, he released his first solo  album ATAK000 Keiichiro Shibuya. His dense composition in that he  drastically focused in sound material (color) and rhythm, was described  as “a perfect work that rules over the history of electronic music”  (Atsushi Sasaki).
Shibuya has been continuing collaboration with  Yuji Takahashi (composer / pianist), Takashi Ikegami (complex system  researcher/ associate professor at Tokyo University). In 2005 Shibuya  and Ikegami started their collaboration as they exhibited a sound  installation work at ICC (Inter Communication Center of Tokyo Oprera  City) and made a concert-style presentation to unveil the The Third Term  Music, a music theory of sound variation and the motion dynamics based  on nonlinear sciences.
He also appears as pianist on Seigen Ono’ album Who Is She? Me? in 1999.
Last  year he worked for a pedestrian crossing signal music project as an  electroacoustic specialist as well as working as a musician for  International Association of Traffic and Safety Sciences; for the  project he composed music from the viewpoint of urban design in place of  the previously-used melody “Toryanse”.
His album ATAK010  filmachine phonics (2007) and the 3-dimensional installation filmachine  (2006), made together with Takashi Ikegami, were awarded honorary  mention in the digital music division at Ars Electronica in 2007. The  installation was shown at the club transmediale. 08 also there was a  partner event at Tesla / Podewil’sches Palais. Moreover, the  presentation of filmachine in Tokyo is already decided for March 2008.  Currently, he works as an adjunct professor at the Tokyo National  University of Fine Arts and Music.

