After 25-year-old pianist Mao Fujita’s fourth curtain call — we were giving thanks for his performance of the Rachmaninoff second piano concerto, with Domingo Hindoyan conducting — he sat back down and, as an encore, offered us the first movement of Mozart’s easiest piano sonata, though not easy at all the way he played it. I remember my music critic dad playing it and still have his music, which had been his mother’s. Whenever I come to church here, I feel his joy, but especially tonight with the little bit of Mozart.