{"value"=>"Includes letters from C.F. Peters Corporation, Charles Cadman, Edna White Chandler, Dorothy Cadzow, the Camerata String Quartet, the Canadian Music Centre, Montague Cantor, Attilio J. Cantore, Lili Carey, David Carmelli, Carnegie Hall, Carroll Musical Instrument Service Corp., Elliott Carter, Raymond Wilding-White (under the auspices of Case Institute of Technology), Joseph Castaldo, Catherine Rein, Norman Cazden, and others."}