TMSO was established by Tokyo Metropolitan Government in 1965 as a part of a cultural promotion project to mark the Tokyo Olympic Games. Currently Kazushi Ono serves as Music Director, Alan Gilbert as Principal Guest Conductor, Kazuhiro Koizumi as Honorary Conductor for Life and Eliahu Inbal as Conductor Laureate.
AS the "Music Ambassador of Capital Tokyo", TMSO is making efforts to vitalize culture and arts.