On November 12 & 13, John Williams’ On Willows and Birches will be performed by the Westchester Philharmonic with harpist Ann Hobson Pilot, for whom it was written by Williams in 2009. Another Williams concert piece, 1984’s Olympic Fanfare and Theme, will be part of the program at the Hartford Symphony’s Picnic in the Park on September 25 (free concert). A full list of John Williams non-concert works performed live can be found at Movies in Concert.