At the age of four, she entered Tokyo University of the Arts, having been selected under a programme aimed at providing specialist education to gifted children.
Chosei Komatsu has collaborated with numerous international solo artists, such as violinists Joshua Bell, James Ehnes, Hilary Hahn, Cho-Liang Lin, Midori Goto, Gil Shaham; cellist Jian Wang; and pianists Leon Fleisher, Lang Lang, Roger Wright, Jeffrey Kahane, Ikuyo Kamiya, Yu Kosuge, and Michie Koyama.