一柳慧

Toshi Ichiyanagi (一柳 慧, Ichiyanagi Toshi; 4 February 1933 – 7 October 2022) was a Japanese avant-garde composer and pianist. One of the leading composers in Japan during the postwar era, Ichiyanagi worked in a range of genres, composing Western-style operas, orchestral and chamber works, as well as compositions using traditional Japanese instruments. Ichiyanagi is known for incorporating avant-garde techniques into his works, such as chance music, extended technique, and nontraditional scoring. Ichiyanagi was married to artist Yoko Ono from 1956 to 1962.