Flat Earth Society Orchestra (FES) is approaching a quarter-century of unreliable music production, with a mission that remains burningly topical and a role that is still not played out. On The One, the indomitable Belgian institute takes on the single-mindedness of truth. In a maddening world of jumbling perspectives, bawling personalities and hunger for comprehension, "The One" has become the highest good. One truth, one clarity, one version, one story.