The Summer Opera 6.00 Reception; 6.30 Opera (first half); 7.45 Dinner Interval; 9.00 Opera (second half); 10.30 Curtain. Haydn’s riotous comedy, La vera Costanza, The True Constant, was one of the composer’s early works for the theatre at Eszterháza, the summer palace of his patron, from 1762, Nikolaus I, Prince Esterházy. The opera was first performed on 25 April 1779 and was later revived there in 1785. The version of the work we have today is a reconstruction for the 1785 revival; a fire destroyed the theatre in late 1779, and with it were lost the performing materials and scores for some of Haydn’s operas. The composer subsequently reconstructed a number of them - including the much-loved Il mondo della luna - from sketches and from memory. Haydn’s opening storm sequence which begins in the overture, sees Baroness Irene, Ernesto, Lisetta, and Villotto rescued from a shipwreck by Rosina and Masino. Count Errico, whom she hopes to dissuade from marrying the fisherwoman Rosina. But – and not unusually for the 18th century - we discover that the Count has ALREADY married (and abandoned) Rosina, who has had child by him. Neither the Count nor the Baroness and her retinue know of the child’s existence. The Baroness is promoting Villotto as a possible husband for Rosina, an impossibility that descends into farce, when the Count suddenly appears, threatening to kill his rival with a pistol. And so the opera proceeds, with Ernesto threatening Masino with a dagger, and other probable - and improbable - incidents!