Both the Chopin recital and this all-Beethoven showcase were unmitigated successes, providing an invaluable look at one of our greatest artists at the peak of his powers. After speaking briefly about his evolving relationship with Beethoven, Ashkenazy plays two Beethoven sonatas: the perennial favorite “Pathétique,” with its exquisitely romantic Adagio and eminently hummable Rondo; and the late Op. 110, one of Beethoven’s final three sonatas, lovely and lyrical in the hands of this master interpreter.