La rencontre imprévue
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La rencontre imprévue (The Unexpected Encounter), also known as Les pèlerins de la Mecque (The Pilgrims to Mecca) is an opéra comique by Christoph Willibald Gluck, first performed at the Burgtheater, Vienna on January 7, 1764. The libretto was by Louis Hurtaut Dancourt, who based it on a 1726 play by Alain René Lesage and d'Orneval.
In 1784 Mozart wrote a set of variations for piano (K.455) on the aria "Unser dummer Pöbel meint" from this opera. In 1887 the variations were orchestrated by Tchaikovsky as the final movement of his orchestral Suite No.4 "Mozartiana".