Who is immune to a little flattery? Who, if anyone, cannot be seduced? Who, if we’re honest, is not tempted by forbidden fruits? As Wolfgang Amadeus Mozart’s Cosi Fan Tutte would have it, nobody – least of all women. All Women Do It translates the title of Mozart’s opera, written in the prolific period before he died. Near-full houses for three nights in The Grand Opera House for this Northern Ireland Opera production was proof that Cosi Fan Tutte remains one of the most popular operas in the world. It wasn’t always so. In fact, it wasn’t until the twentieth…