"Tatsuhisa Yamamoto, born on Oct 25, 1982, in Yamaguchi, Japan, is a pure acoustic drummer, not an electric drummer. He plays primarily improvised music, and participates in a variety of bands, projects, supporting singers, and has produced multiple recordings. Yamamoto's solo acoustic performance succeeds in combining dynamism, melodicism and polyrhythm, fusing overwhelming volume with delicate technique.

Yamamoto has also collaborated with artists such as Otomo Yoshihide, Jim O'Rourke, Sachiko M, RUINS, Seiichi Yamamoto (ex.boredoms), Kazuhisa Uchihashi, Keiji Haino, Akira Sakata, Kumio Kurachi, Daisuke Takaoka, Makoto Kawabata (AcidMotherTemple), Munehiro Narita(HIGHRISE), Mitsuru Tabata(ZENI-GEVA/AMT&TCI), Masahiko Sato, Yuji Takahashi, Gianni Gebbia, Ned Rothenberg, Daniele Camalda, Alan Silva, and many others.

Yamamoto's main projects are SSW, a duo with "Eiko Ishibashi"; "NATSUMEN", a band lead by AxSxE; acoustic & synthesized drums duo with Muneomi Senju (ex.Boredoms); "Plus Minus Zero"a live electronica & psychedelic prog jam trio with Yuji Katsui (ROVO) and marron a.k.a. dubmarronics; "FirstMeeting," an acoustic noise improvisation Quartet with Natsuki Tamura, Satoko Fujii, and Kelly Churko; "Ohanami," a unit with Yoshio Machida on the steelpan; as well as recordings with the Kahimi Karie band featuring Otomo Yoshihide and Jim O'Rourke. Recently he has been performing regularly with Jim O'Rourke. He participates in, and organizes multiple projects around Tokyo."

"Yoshio Machida (町田 良夫 Yoshio Machida?, born 1967 in Japan) is an experimental musician, a steelpanist, composer, and visual artist.

A member of ASCAP, Machida studied minimal art, music and film at the Tama Art University under Kuniharu Akiyama, Yoshiaki Touno, Sakumi Hagiwara and Kishio Suga. In the 1990s, Machida worked for an international cooperation in Asia and Africa.

Machida's first album Hypernatural (1999) had been featured with Brian Eno and Oval (band) on David Toop's article about Generative music. In 2001, Machida started to play improvised music by Steelpan with computer program Max/MSP. Machida has been invited to perform in ISEA2004, Sónar Tokyo, MaerzMusik and other venues. In 2004, Machida founded an experimental music label Amorfon. In 2007, Machida formed an electric Dub band miimo with tatsu and Norihide Saji. Machida also organized "Japan-Macedonia exchange art exhibition" and some workshops for children.

As a visual artist, Machida has produced Photobatik like Photogram technique using photographic paper. Photograms are produced by partial exposure and development of the entire photosensitive surface. Photobatik is "whole exposure and partial development." Machida has expanded his technique to overexposure of the photographic paper followed by only fixing the image, resulting in a pink image."