About

Composer, Arranger & Pianist Seishiro Irie

Born in Yokohama, Kanagawa, Japan. Graduated from the Faculty of Economics at Keio University in 2021. Worked at Mitsubishi Electric Corporation in the defense division from 2021 to 2023, before launching a career as a composer, arranger, and pianist in 2024.

Began studying classical piano at the age of three; started learning composition and arrangement independently at eighteen. In 2019, took on the "One Song a Day" challenge — composing 100 piano pieces over 100 consecutive days and posting them on social media, drawing attention both on and off campus.

In 2022, appeared as an emerging artist on the main stage of Rengo Mita-kai 2022, premiering Jirolian Rhapsody — a four-movement work depicting the story behind the making of Ramen Jiro — before an audience of several thousand. The piece was re-recorded in 2023 at KING RECORDS, with full executive production oversight of a 23-musician session.

In 2024, joined ONiONiGiRiES — a band that reimagines traditional Japanese folk music for modern audiences — as composer, arranger, and pianist. The following year, a joint elementary and junior high school concert in Aomori Prefecture was picked up by local media, airing on ABA Aomori Asahi Broadcasting and ATV Aomori Television.

Currently active as a freelance composer, arranger, and pianist, creating music for sound logos, film and video, weddings, and more. Also performs live regularly with ONiONiGiRiES and as a guest pianist at events featuring Hana of Gacharic Spin.