1960年代、日本フリージャズの勃興時から活躍したドラマー、パーカッショニスト、二胡奏者、豊住芳三郎（通称サブ）。その活動領域は日本にとどまらない。若き日から世界を旅し、シカゴではAACM（Association for the Advancement of Creative Musicians）と行動を共にし、またヨーロッパ即興シーンの猛者たちと国内外で共演を積み重ね、多数のミュージシャンと演奏、招聘にも尽力している。ジョン・ラッセル氏とは日本人でもっとも親しく、共演数が多い。2005年のLondon Mopomoso Fes= "Sabu Toyozumi Project" をはじめ4回共演。Duo演奏のCDは日本のChap Chap Records、フランス、台湾のレーベルから3枚リリース。海外Fesはベルギー、フィンランド、台湾ほかパリのクラブでも共演。

Yoshisaburo Toyozumi (commonly known as Sabu),as a drummer, percussionist, and also a player of Erhu, started his activities when free Jazz was booming in Japan. His activities are not limited in Japan. Sabu starts traveling the world when he was young, and worked with AACM (Association for the Advancement of Creative Musicians) in Chicago, performed with many leading figures in the European improvisation scene both in and outside Japan, dedicating to collaborate with and invite many musicians for performances. He is the closest Japanese friend and most frequent collaborator with John Russell among Japanese. They have performed together four times, including at the London Mopomoso Fes="Sabu Toyozumi Project" in 2005, and have released three CDs of their Duo performances on Chap Chap Records in Japan, and labels in France and Taiwan. They have also performed at overseas festivals in Belgium, Finland, Taiwan, and at clubs in Paris.

フリーインプロヴァイザー。1992年、ロシアにおけるインターナショナルジャズ祭にて劇的デビュー。 1994年、日本大使館主催 (在・フランス) の音と美術のコラボレーション『泥』の3日間公演は 大好評に終える。
厳島神社 (宮島) 1400 年祭のミュージカルでは 音楽部門を担当する。 ビヨンド・イノセンス、インターナショナル・シアター祭 (韓国)、マグマプロジェクト、ダライ・ラマが提唱する『聖なる音楽祭』など国内外で精力的に活動。多種多様な共演者・空間を持つアーティストである。
ジョン・ラッセル氏とは日本でも何度も共演。2度招聘される。亡くなる1年前にもジョンさんの家でお世話になる。

A free music improviser. In 1992, He made his dramatic debut at the International Jazz Festival in Russia. In 1994, the three-day performance “Doro”, which combined sound and art organized by the Japanese Embassy in France, achieved a great success.
He was in charge of the music section for 1400th Anniversary of Itsukushima Shrine (Miyajima).He has been active in and out Japan, including Beyond Innocence, The International Theater Festival (Korea), Magma Project, and the "Sacred Music Festival” proposed by the Dalai Lama. He is a multidimensional artist with a wide variety of collaborators.
Masaharu Showji performed with John Russell many times, and was invited by John for performances twice. He has stayed at John’s home for the music activities a year before John passed away.

2009年、大阪の現代美術画廊「Gallery Nomart（ギャラリーノマル）」をホームに橋本孝之（alto sax, guitar, harmonica）と共にコンテンポラリー・ミュージック・ユニット.es（ドットエス）結成。現代美術ディレクター林聡がプロデュース。
結成当初より現代美術をはじめ様々な表現領域とのコラボレーションを行い、国内外にて活動を展開。国内外の音楽家達とのコラボレーションによって生まれるボーダレスな世界― “音”と“音楽”の間（ま）で交錯する感覚を表現する。2021年5月、橋本孝之永眠後も「.es」として活動を継続。

Formed in 2009, residing in Gallery Nomart, one for contemporary art, in Osaka, .es is composed of Takayuki Hashimoto (alto sax, guitar, harmonica) ＋ sara (piano, others), a contemporary music unit, produced by Satoshi Hayashi, director of the gallery.
From the beginning, they have collaborated with artists of different fields of expression, like contemporary art, and played in and outside Japan.The two musicians perform in a borderless realm that is forged through their collaborations with musicians from all over the world who work in diverse genres, from improvisation, noise, electronic music, through to jazz, rock, and classical and contemporary music, creating the senses intertwined between ‘sound’ and ‘music’. In May 2021, sara decided to continue activities as ".es” after Takayuki Hashimoto passed away.