Oboist Nicholas Daniel conducts the massed wind, brass, and percussion players of Britten Sinfonia and Sinfonia Smith Square in a programme that pivots around Messiaen’s gigantic, and rarely performed, tribute to the dead of two World Wars. With forces uniquely coloured by a vast array of cowbells, gongs and tam tams, the stark monoliths of sound summon a mighty sense of awe that makes Et Exspecto a bucket-list concert experience.