Ehnes Quartet - James Ehnes, violin; Amy Schwartz Moretti, violin; Richard O'Neill, viola; Edward Arron, cello The Ehnes Quartet, hailed for their "Dream team line-up" (Strings) makes a much anticipated return to Fickling Hall, to perform a concert of the Great Russian Masters. Including Shostakovich's Tenth String Quartet, the famous "Nocturne" from Borodin's String Quartet…