(WILLIAMSTOWN, Mass.) – The Emerson String Quartet will perform works by Beethoven, Brahms, and Shostakovich in a free concert in Chapin Hall at Williams College campus on Monday, April 25, at 8pm. The Emerson String Quartet — Eugene Drucker and Philip Setzer, violins; Lawrence Dutton, viola; and Paul Watkins, cello – will perform String Quartet…