Four tickets to Chicago Youth Symphony Orchestra's concert at Orchestra Hall on Sunday, May 19, 2013 at 7:30 p.m. Join the CYSO for Khachaturian's Violin Concerto and Gayene Adagio, Ligeti's Atmospheres, R. Strauss' Also sprach Zarathustra & J. Strauss, Jr.'s On hte Blue Danube.