Leonard Bernstein’s impressive choral masterpiece, Chichester Psalms, here celebrates his centenary; pianist, conductor and composer, in jazz, classical and musical theatre (West Side Story), he was a giant of 20th-century American music.

The first half of the programme is completed by the heart-achingly beautiful Adagio for Strings by his compatriot Samuel Barber; originally the slow movement of a string quartet, it was frequently played by Toscanini as an encore.

Mozart’s Requiem needs little introduction; mysteriously commissioned, and left unfinished at his death, it is one of the most popular of all choral-orchestral works, containing page after page of his finest music.