Bandoh was born in Osaka in 1991. Due to his father's work, he moved frequently in his childhood before settling in Saitama in fourth grade of elementary school. He began playing the piano when he was three years old.[1] When he was a child, he wanted to become either an architect or a film director. In sixth grade of elementary school, his piano teacher encouraged him to become a composer.[2]
In February 2024, Bandoh announced that he had married poet Yumi Fuzuki [ja] in July 2023.[3]
Bandoh attended the affiliated music high school of Tokyo University of the Arts before studying composition there. He subsequently attended their graduate school.[4]
He composed the theme song "Voices" for Hōdō Station in 2021.[5] In October 2022, he held his first solo exhibition at Hamarikyu Asahi Hall.[6]
^Mugikura, Masaki (January 29, 2022). (2ページ目)音楽家・坂東祐大 自分が生きる“時代性”を考えながら10年、20年先に残る音楽を [(Page 2) Musician Yuta Bandoh Thinking about the "time" in which he lives, he creates music that will remain 10 or 20 years from now.]. Aera (in Japanese). Archived from the original on September 30, 2023. Retrieved September 30, 2023.
^Mugikura, Masaki (January 29, 2022). (3ページ目)音楽家・坂東祐大 自分が生きる“時代性”を考えながら10年、20年先に残る音楽を [(Page 3) Musician Yuta Bandoh considers the “time” in which he lives and creates music that will remain 10 or 20 years from now.]. Aera. Archived from the original on September 30, 2023. Retrieved September 30, 2023.
^音楽家・坂東祐大氏、詩人の文月悠光氏と結婚 芥川作曲賞×最年少中原中也賞の天才夫婦に [Musician Yuta Bandoh marries poet Yumi Fuzuki, making them the genius couple Akutagawa Composition Award x the youngest Nakahara Chuya Award Winner]. Sponichi (in Japanese). February 5, 2024. Retrieved April 21, 2024.
^Mugikura, Masaki (January 29, 2022). 音楽家・坂東祐大 自分が生きる“時代性”を考えながら10年、20年先に残る音楽を [Musician Yuta Bandoh Considers the "time" in which he lives and creates music that will remain 10 or 20 years from now]. Aera (in Japanese). Archived from the original on September 30, 2023. Retrieved September 30, 2023.
^Ono, Hanae (September 29, 2022). 作曲家・坂東 祐大インタビュー~ポートレート・コンサート『耳と、目と、毒を使って』で魅せる異次元の「音楽」と独創性 [Interview with composer Yuta Bandoh ~ A different dimension of “music” and originality that will be shown in the portrait concert Using Ears, Eyes, and Poison]. Spice (in Japanese). Archived from the original on September 30, 2023. Retrieved September 30, 2023.
^『竜とそばかすの姫』のココがスゴい! 細田守が若き才人たちと作り上げた集大成!! カンヌ映画祭出品 [This part of The Dragon and the Freckled Princess is amazing! The culmination of Mamoru Hosoda's work with young talents!! Submitted to the Cannes Film Festival]. BANGER!!! (in Japanese). July 16, 2021. Retrieved September 18, 2023.
^坂東祐大 TRANCE/花火若き作曲家、その創造の軌跡 [Yuta Bandoh TRANCE/Fireworks Young composer, his creative trajectory]. Freude (in Japanese). February 7, 2022. Retrieved April 21, 2024.
^坂東祐大が手がけるドラマ『大豆田とわ子と三人の元夫』音楽集がリリース LEO今井、BIGYUKIらが参加 [Yuta Bandoh's music collection for the drama Omameda Tawako and Her Three Ex-Husbands has been released. LEO Imai, BIGYUKI and others participate]. Real Sound (in Japanese). April 27, 2021. Retrieved September 18, 2023.
^坂東祐大×羊文学・塩塚モエカ、NHKドラマ「17才の帝国」主題歌でコラボ(塩塚モエカコメントあり) [Yuta Bandoh x Hitsuji Bungaku/Moeka Shiozuka collaborate on theme song for NHK drama 17-year-old's Empire (with comment from Moeka Shiozuka)]. Music Natalie (in Japanese). Retrieved September 18, 2023.
^米津玄師書き下ろしの『FF16』テーマソング『月を見ていた』が配信開始。米津玄師が描いた“青い毛並みの狼”のジャケット絵も初公開 [FF16 theme song "Watching the Moon" written by Kenshi Yonezu is now available. Kenshi Yonezu's "Blue Fur Wolf" jacket art is also unveiled for the first time]. Famitsu (in Japanese). June 26, 2023. Retrieved September 18, 2023.
^第81~90回 | 日本音楽コンクール [No. 81–90 | Japan Music Competition]. oncon.mainichi-classic.net. Archived from the original on March 30, 2023. Retrieved September 18, 2023.
^第25回「芥川作曲賞」坂東祐大氏の作品 ダミエ&ミスマッチ J.H:S に決定 [Yuta Bandoh's work Damier & Mismatch J.H:S selected for the 25th Akutagawa Composition Award]. Suntory. August 31, 2015. Archived from the original on June 21, 2020. Retrieved September 18, 2023.