Pianist Michael Arnowitt delivers an on-point performance at National Gallery

The National Gallery of Art's new exhibition is "Diaghilev and the Ballets Russes" and, in its honor, pianist Michael Arnowitt has put together a beautifully thought-out program -- a bits-and-pieces retrospective of what was going on musically about 1913, when the past, present and future vied for position. He played it at the gallery Sunday with an exquisite sense of touch, color and musical imagination.