Margrave Christian Ludwig of Brandenburg-Schwedt Margrave Christian Ludwig of Brandenburg-Schwedt Christian Ludwig (24 May 1677 – 3 September 1734), a member of the House of Hohenzollern, was a Margrave of Brandenburg-Schwedt and a military officer of the Prussian Army. The margravial title was given to princes of the Prussian Royal House and did not express a territorial status. He is best known as the recipient of Johann Sebastian Bach's "Brandenburg concertos". Born in Berlin, Christian Ludwig was the youngest son of the "Great Elector" Frederick William (1620–1688), ruler of Brandenburg-Prussia, and his second wife Princess Sophia Dorothea of Schleswig-Holstein-Sonderburg-Glücksburg (1636–1689). Like his elder brothers, he
Piano concertos by Wolfgang Amadeus Mozart elevated to the most prominent position among the instruments. These works, with their alternation of orchestral "tuttis" and passages for solo display, in turn owe their structure to the tradition of Baroque operatic arias, from which the first movements of Mozart's piano concertos inherited their basic ritornello form. A similar structure can also be seen in the violin concerti of, for example, Vivaldi, who established the form, along with the three-movement concerto structure, and Viotti, wherein the concerto is divided into six sections. The keyboard parts of the concertos were almost invariably based on material presented in the ritornelli, and