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

The National Gallery is featuring a "Diaghilev and the Ballet Russes" exhibition and, in its honor, pianist Michael Arnowitt has put together a beautifully thought-out program -- a sort of bits-and-pieces retrospective of what was going on musically around that year, 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.