"Bang, Billy"@en . "1947Z"^^ . "Billy Bang"@en . "American musician" . . "2011Z"^^ . "solo_singer" . . . . . . . . "William Vincent Walker"@en . "Billy Bang"@en . "1947-09-20Z"^^ . . "2011Z"^^ . "2011-04-11Z"^^ . . . "Billy Bang (September 20, 1947 \u2013 April 11, 2011), born William Vincent Walker, was an American free jazz violinist and composer."@en . . . . . "1972Z"^^ .