It’s been ten years since the pianist regained the use of both his hands for playing the piano. “Several weeks shy of his 80th birthday, Mr. Fleisher maintains a schedule most people half his age would find exhausting, performing widely and recording, most recently, the Brahms Piano Quintet with the Emerson String Quartet, just released by Deutsche Grammophon. He rejects the suggestion that he’s making up for lost time.”