"solo_singer" . . "1936Z"^^ . . . "Kostas Hatzis (Greek: \u039A\u03CE\u03C3\u03C4\u03B1\u03C2 \u03A7\u03B1\u03C4\u03B6\u03AE\u03C2) (born August 13, 1936) is a Romani singer-songwriter and musician.Kostas Hatzis born in Livadeia, a city in central Greece. He is one of the most significant composers in the Greek social song. He is the one who has substantially imposed the \"voice-guitar\" style, and for the first time he made ballads with social messages heard.His grandfather was a great popular clarinettist, and his father also played very well the dulcimer."@en . . "Kostas Hatzis"@en . "Kostas Hatzis"@en . "1961Z"^^ . "Singer" . . . "1936-08-13Z"^^ . . .