of musique concrète and “indeterminate music.” Tone’s influence through his writing and theory may also be detected when art historian Reiko Tomii credits him with helping to solidify the term “gendai bijutsu” (contemporary art) to indicate the new idiom of postwar art in Japan as distinct from other terms such as “kindai bijutsu” (modern art) or “zen’ei” (avant-garde). This articulation of a new idiom received textual form in “Chronology: Five Decades of Contemporary Art, 1916-1968” in 1972. For this text, Tone, along with Naoyoshi Hikosaka and Yukio Akatsuka, compiled a history of Japanese contemporary art, published in Bijutsu Techo. Tone was an important friend and influence upon Hikosaka, an important progenitor of conceptualism in Japan. Tone’s role as an influential theorist for young Japanese contemporary artists can be observed in his relationship Hikosaka more generally, to whom he introduced the works of Fluxus and John Cage as well as the philosophy of Edmund Husserl. It was Tone who also suggested that Hikosaka use latex as the material for his important 1970 Floor Event piece instead of the conventional art material of plaster, and who assisted in the work by pressing the shutter button on the 35 millimeter camera as Hikosaka brushed the latex over the floor of his home. Tone was one of the five original artists of Hikosaka’s “Bikyōtō Revolution Committee,” a continuation of “Bikyōtō,” a radical, leftist student protest group at Tama Art University. In 1970 Tone compiled and published a book of his writing titled Gendai geijutsu no isō. Jury Event: Tone Prize Exhibition In September 1964, Tone published an ad in “Ongaku Geijutsu” magazine that read, “Call for Entries: 1st Tone-Prize Composition.” Details read: “Tone Prizes are given to all entries. Deadline: October 1. Certificates will be mailed in lieu of official announcement in early October. There is no restriction on form or content. However, phenomena will not be accepted for they are impossible to present; instead please submit texts, etc. For further details, please contact: Yasunao Tone, 11 Asakusa Shōtenchō, Taitō-ku, Tokyo. Announcement of Prizes Works that receive Tone Prizes automatically qualify for the following individual prizes, which will be presented at a concert as Sogetsu Hall in late November. Prizes include: Kosugi Prize, Ichiyanagi Prize, Okuyama Prize, Ono Prize, Akasegawa Prize, Nakanishi Prize, Takiguchi Prize, Takeda Prize, Ishizaki Prize, Shinohara Prize, Kobayashi Prize, Hijikata Prize, etc. Performed and juried by: Kosugi Takehisa, Ichiyanagi Toshi,