“Acclaimed pianist Inon Barnatan has been chosen by the La Jolla Music Society to succeed Cho-Liang ‘Jimmy’ Lin as the music director of SummerFest, the nonprofit arts organization’s annual August chamber-music festival. … Barnatan, 38, will take over in 2019 from Lin, 58, who will conclude his 18th year heading SummerFest on Aug. 31.”