THE MUSIC

The music will be overseen by James Vivian, the chapel’s director of music. He has written descants for two hymns that will be sung during the service. Also performing are: ■ The Royal Philharmonic Orchestra. ■ Internationally renowned operatic singer Andrea Bocelli, left, will perform two pieces. ■ State Trumpeters from the Band of the Household Cavalry will perform a fanfare, written especially for the occasion.