Enjoy the “Proms” atmosphere of Elgar’s “Land of Hope and Glory” before Royal Wedding cellist Sheku Kanneh-Mason, sister Isata and brother Braimah sparkle their way through Beethoven’s Triple Concerto. Winners of the Eastbourne International Singing Competition are the soloists in Verdi’s dramatic Requiem. With the English Arts Chorale and Orchestra conducted by Leslie Olive.