In June and July Stefan Jackiw played a 10-concert tour in Korea as a member of Ensemble Ditto, an all-male chamber ensemble of Korean heritage. Credited with broadening audiences for classical music and called “sensational” by the Korea Herald, Ditto sold out every concert in convention center-sized halls weeks in advance. Now Jackiw has been invited to do a solo recital in December at the Seoul Arts Center, Korea’s equivalent of Carnegie Hall.