A Japanese composer and conductor born in Tokyo.
(December 16, 1932 - 18 June 2002)
His wife is a composer 山本 正美 (Masami Yamamoto).
His eldest son is also a composer 山本 純ノ介 (Junosuke Yamamoto).
His second son is cellist 山本 祐ノ介 (Yuunosuke Yamamoto)
His father is a composer and director 山本 直忠 (Naotada Yamamoto).
His younger brother is percussionist 山本 直喜 (Naoki Yamamoto).
His younger brother is conductor 山本 直親 (Naochika Yamamoto).
渡辺 岳夫 (Takeo Watanabe) and 小澤征爾 (Seiji Ozawa) are friends of his high school days.