"solo_singer" . "Mark Henry Balderas, born September 10, 1959 in Encino, California, was the keyboard player for the rock band Human Drama from 1986 to 1991 and again from 1993 to 2005."@en . . "Mark Henry Balderas"@en . . . . . . . . "1959Z"^^ . . "American musician" . "Balderas, Mark"@en . "1983Z"^^ . . . . "Mark Balderas"@en . . "1959-09-10Z"^^ . .