"solo_singer" . "british keyboard player" . "Evans, John"@en . . "John Spencer Evans"@en . . "John Evans"@en . "John Evan (born John Spencer Evans, born 28 March 1948, Blackpool, Lancashire) is a British musician and composer. He is better known for having played keyboards for Jethro Tull from April 1970 to June 1980. He was educated at King's College London."@en . "1960Z"^^ . . "John Evan"@en . "1948-03-28Z"^^ . . . . "Evan, John"@en . . . "1948Z"^^ .