JOHN LENNON Gimme Some Truth [Capitol] BOX SET REVIEW “Look at me,” sang John Lennon in 1970, with the Beatles’ bitter breakup just behind him and an uncertain new decade ahead. “What am I supposed to be?” Every great songwriter asks that question in one way or another, but few do so with the ruthless honesty with which Lennon pursued it through a solo career rich with contradictory impulses, wild course corrections and—of course—an...