You could take almost any year of composer Wolfgang Amadeus Mozart’s life, probably from the age of fifteen onwards and be staggered by both the scale of his output… AND the quality… but his final year… 1791.. was a truly astonishing achievement… including his 27th piano concerto, his 6th string quintet, his clarinet concerto, two complete operas in wildly contrasting genres… ‘La Clemenza di Tito’ and ‘The Magic Flute’, and an unfinished Requiem Mass.