1949年、愛知県生まれ。慶應義塾大学法学部卒業後、ベース奏者として「ファー・イースト・ファミリー・バンド」「観世音」（1991年にCD化）などで活動し、アルバム「地球空洞説（The Cave Down To The Earth）」「パラレルワールド（オックスフォード マナースタジオ録音）」「天空人」にベーシストとして参加。
その後、 1979年、古民具市で不思議な楽器と天啓のようにして出会う。以来、名前もわからず、朽ちかけていたこの楽器を自身で修理、調弦、作曲し、独自の奏法を駆使して独創的な音世界を創り上げてきた。後になりこの楽器が中国の古典楽器「秦琴」という事を知る。
1986年、秦琴奏者として初アルバム『秦琴』をリリース。オリジナル作品はもとより、様々な作品のテーマ音楽を担当、1986年、TBSラジオ「筑紫哲也のニュースジョッキー」のテーマ音楽、 1987年NHK大河ドラマ「武田信玄」挿入曲演奏、1989年、坂東玉三郎舞台「玉三郎 in 姫路」音楽監督・作曲・演奏、
1995年〜1999年、NHKドラマ宮尾登美子三部作「蔵」「春燈」「櫂」テーマ曲、作曲・演奏、1996年、関西テレビHi-Visionドラマ「雪の夜の微塵となりて眠るかな～湖・三橋節子伝説」の音楽を担当、1999年、関西テレビドキュメンタリードラマ「谷崎潤一郎 その愛」の音楽を担当、
2000年坂東玉三郎舞台「海神別荘」の作曲、2006年、尾上松緑主演「夏の夜の夢・原作：シェークスピア」(東京日生劇場・大阪松竹座）の音楽を担当。
絹糸を基にして様々なエフェクターや音響装置を用いて、草月ホール、愛知厚生年金ホール、スパイラルホール、レストランCAY、伊豆高原「花吹雪」定例コンサート、国指定重要文化財 渡邉邸コンサート、演劇倶楽部『座』との共演、大月「長応寺」送り火コンサートなど、さまざまな場所で演奏を展開してきたが、
近年は電気的なものを一切捨て去り、マイクを用いず、演奏、歌、語り、全て生音で行っている。現在、一枚のDVD、再発盤を含め、十五作品をリリースしている。
Aki Fukakusa Profile
Born in Aichi Prefecture in 1949. After graduating from the Faculty of Law at Keio University, Fukakusa worked as a bassist with groups including Far East Family Band and 観世音(Kanzeon,whose recordings were released on CD in 1991). He also contributed as a bassist to the albums 地球空洞説（The Cave Down To The Earth）, Parallel World（A recording made at The Manor Studio in Oxford.）, and 天空人（Tenkūjin）.
After that, In 1979, he encountered a mysterious musical instrument at an antique flea market. Its name was unknown, and the instrument was already in a state of decay. Drawing on his experience as a musician, he began to restore the instrument, develop its tuning, explore its playing techniques, and compose music for it. Through this process, he gradually developed a distinctive approach to the instrument and forged a unique sonic language. Only later did he learn that it was the qinqin (秦琴), a traditional Chinese plucked lute.
In 1986, he released his first album, Qinqin, as a qinqin player. Alongside his own compositions, he has created and performed music for a wide range of productions. That same year, he composed the theme music for Tetsuya Chikushi's News Jockey on TBS Radio. In 1987, he performed background music for the NHK historical drama Takeda Shingen. In 1989, he served as musical director, composer, and performer for Tamasaburo Bando's stage production 玉三郎 in 姫路.
From 1995 to 1999, he composed and performed the theme music for three NHK television dramas based on Tomiko Miyao's novels: 蔵, 春燈, and 櫂. In 1996, he composed the music for the Kansai Television Hi-Vision drama 雪の夜の微塵となりて眠るかな～湖・三橋節子伝説. In 1999, he composed the music for the Kansai Television documentary drama 谷崎潤一郎 その愛.
In 2000, he composed the music for Tamasaburo Bando's stage production 海神別荘. In 2006, he composed the music for A Midsummer Night's Dream, based on Shakespeare's play and starring Shoroku Onoe, presented at Nissay Theatre in Tokyo and Shochikuza Theatre in Osaka.
Over the years, he has explored new possibilities of sound by combining silk strings with a variety of effects and sound equipment. His performances have taken place at venues including Sogetsu Hall, Aichi Koseinenkin Hall, Spiral Hall, Restaurant CAY, the regular concerts at Hanahubuki in Izu Kogen, concerts at the Watanabe Residence, a Nationally Designated Important Cultural Property, collaboration with 演劇倶楽部『座』and the Okuri-bi concert at 長応寺 in Otsuki.
In recent years, however, he has set aside all electronic equipment. He now performs without a microphone, using only the natural sound of his instrument, his voice, and the spoken word.
To date, he has released fifteen works in total, including a DVD and reissued editions.