"At the time Mozart wrote Sonata No. 11, the music of Turkish Janissary bands was very much in fashion. These groups are thought to be the oldest form of military marching bands in the world. Indeed, at that time in Mozart's life, anything Ottoman was very much in vogue, and you can see the influence of the empire in his opera Die Entführung aus dem Serail, which is set in a seraglio - a type of Ottoman harem or brothel."
"Mozart composed Sonata No. 11 at the age of around 27 - perhaps in 1783 in Vienna or Salzburg. The third and final movement, known popularly as the Turkish March, is in the rondo form, and was entitled 'Alla Turca' by Mozart himself. "