1. National Philharmonic; Piotr Gajewski conducts the orchestra, guest violist Victoria Chiang and guest violinist Nurit Bar-Josef in "Mozart and the Voice of the Viola," featuring Mozart's Sinfonia Concertante, Telemann;s Concerto for Viola and Mendelssohn's String Symphony No. 9.
Where: Music Center at Strathmore, 5301 Tuckerman Lane, North Bethesda
When: 8 p.m. Saturday, 3 p.m....