Christoph Eschenbach's second program of his late-season trio includes Beethoven's splendid Symphony No. 4, Mozart's fascinating Oboe Concerto featuring NSO Principal Oboe Nick Stovall, and overtures to Rossini's William Tell and Mendelssohn's A Midsummer Night's Dream. Performance Timing: Part One - 35 min.; Intermission - 15 min.; Part Two - 50 min.