Brandenburg Concerto No. 5 the concerto to the set of "Brandenburg Concertos" in 1721 he had reworked it for a two-manual harpsichord, expanding the accompaniment with an additional cello part. Because of the limited input of the violin and flute solo parts, as compared to that of the harpsichord, the concerto can be seen as a harpsichord concerto, moreover, the first harpsichord concerto ever written. Nonetheless, the structure of the concerto and the soloist material of the harpsichordist are greatly indebted to violin concertos such as Vivaldi's "Grosso mogul" (which Bach had transcribed for organ, BWV 594) and Johann Ernst of Saxe-Weimar's G major
Brandenburg the Province of Brandenburg, again subdivided into the government regions of Frankfurt and Potsdam. In 1881, the City of Berlin was separated from the Province of Brandenburg. However, industrial towns ringing Berlin lay within Brandenburg, and the growth of the region's industrial economy brought an increase in the population of the province. The Province of Brandenburg had an area of and a population of 2.6 million (1925). After World War II, the Neumark, the part of Brandenburg east of the Oder–Neisse line, was transferred to Poland; and its native German population expelled. The remainder of the province became a state