{"value"=>"Includes letters from John Bilitz, Allan Blank, Howard Boatwright, Jr., Jose Bornn, Jr., Aaron Copland (under the auspices of the Boston Symphony Orchestra), Will Bottje, Florence Bower, Paul Bowles, Irving Fine (under the auspices of Brandeis University), William Brezina, Frederick Bristol, Roslyn Brogue, Josef Alexander (under the auspices of Brooklyn College), Lucy Brown, Martin Brown, Ruth Brush, Gene Bullard, George Burt, Eldin Burton, Harold Budd, Howard Boatwright, and others."}