She formed part of the New Song movement in Latin America , which combined folk song traditions with contemporary music that often featured political messages in its lyrics . Singer Mercedes Sosa `` lived her 74 years to the fullest , '' her son says . She had suffered from liver , kidney and heart ailments , Washington Post reports . The singer died at a hospital in Miami on Friday after suffering complications related to pneumonia, according to an obituary posted by her son, Luis Rodriguez. Viewing to be held Sunday at the Congress of the Nation in Buenos Aires .
Singer Mercedes Sosa `` lived her 74 years to the fullest , '' her son says . She had suffered from liver , kidney and heart ailments , Washington Post reports . The singer died at a hospital in Miami on Friday after suffering complications related to pneumonia, according to an obituary posted by her son, Luis Rodriguez. Viewing to be held Sunday at the Congress of the Nation in Buenos Aires .