The Chatham Baroque + Renaissance and Baroque 2022-2023 Concert Season begins on Saturday September 24th with Fortepianist and faculty member at the Juilliard School, Yi-heng Yang, performing the music of Mozart, Haydn, and Beethoven on a replica of an 18th-century Viennese Walter fortepiano.  The concert takes place at Calvary Episcopal Church, Shadyside at 7:30pm.   WQED-FM's Anna Singer spoke to Yi-heng about the concert.