Kioi Sinfonietta Tokyo (KST) was founded as the resident chamber orchestra of Kioi Hall in 1995. With three leaders, Kazuki Sawa, Yasushi Toyoshima and Koichiro Harada, the orchestra comprises top-class artists. KST is one of the leading chamber orchestras of Japan. Musical advisor and chief conductor is Tadaaki Otaka, Honorary Conductor Laureate from 2003.