Performers: Yamen Saadi, violin (concertmaster of the Vienna Philharmonic). Avri Levitan, viola. Sinfonia Varsovia. Martin Rajna, conductor. Program: [100′] Carl Maria von Weber, Overture to the opera Der Freischütz [10′]. Wolfgang Amadeus Mozart, Sinfonia Concertante in E-flat major for violin, viola, and orchestra K.364/320d [30′] I. Allegro maestoso II. Andante III. Presto. Intermission…