{"value"=>"Includes letters from Roger Riggins, the Rachmaninoff Fund, Inc., the Radio Britain Musical Endowment Fund, Eda Rapoport, Gua Raup, Carlos Rausch, Joan Ray, Edward Rebner, David Reck, Reitoria da Universidade da Bahia, Andres Lewin-Richter, Marga Richter, Wallingford Riegger, Vittori Rieti, J. Condon Riley, Keith Robinson, and others."}