Born in Nagoya, Kumamoto, Japan, Tomoko Tanaka started playing the violin at the age of four. She was the youngest ever winner of the Kumanichi Student Music Competition Grand Prize, and after graduating from the Aichi Prefectural University of Fine Arts and Music, she went on to the New England Conservatory in Boston.
She was appointed Associate Concertmistress of the New World Symphony Orchestra by the Music Director Michael Tilson Thomas, and appeared as a soloist with the orchestra. In 1997 she joined the Hong Kong Philharmonic Orchestra.
She has participated in the Aspen Music Festival in the US, and the Pacific Music Festival in Japan where she toured as the Concertmistress.
She formed the MTT Music Studio, focusing on solo activities and holding recitals in Hong Kong, Japan, Europe and more.
She also engages in charity activities in Hong Kong and Italy, including fundraising for the Great East Japan Earthquake, the Kumamoto Earthquake, and victims of heavy rains in western Japan. She held Japan-Hong Kong friendship concerts with the Consulate General of Japan in Hong Kong, and has been active in fundraising scholarships for studying abroad in Japan.
She studied violin with Masuko Ushioda, Pinchas Zukerman, Marylou Speaker Churchill, and Koichiro Harada; and studied chamber music with Eugene Reina.
Her CD Tomoko Tanaka Album 1 was released in 2014.