National Symphony Orchestra shines in quiet moments at Wolf Trap

The National Symphony Orchestra's summer season at Wolf Trap includes a lot of fluff, quite appropriately. Friday night's concert in the Filene Center was an exception, featuring three pieces that the group might perform on subscription concerts at the Kennedy Center. In fact, the last time the NSO played two of these pieces, Ravel's Piano Concerto in G Major and Tchaikovsky's Fourth Symphony, was as recent as the spring of 2013.