. . . . "Conrad Yeatis \"Sonny\" Clark (July 21, 1931 \u2013 January 13, 1963) was an American jazz pianist who mainly worked in the hard bop idiom."@en . "1931-07-21Z"^^ . . . "1962Z"^^ . . . . . "Clark, Sonny"@en . "1953Z"^^ . "1963-01-13Z"^^ . . . . . . . . . . . "1963Z"^^ . . . . . . . . . "Conrad Yeatis Clark"@en . . "non_vocal_instrumentalist" . . . . . . . . . . . "American musician" . . . . "Sonny Clark"@en . . . "1931Z"^^ .