"American musician" . "1937-06-04Z"^^ . . "1937Z"^^ . . "non_vocal_instrumentalist" . . "Gene Bertoncini"@en . . "1960Z"^^ . "1937-04-06Z"^^ . "Gene Bertoncini (born 6 April 1937) is an American jazz guitarist."@en . . "Bertoncini, Gene"@en . .