Keyboard concertos by Johann Sebastian Bach soloists, were all adapted into harpsichord concertos by the composer, BWV 1058, 1054 and 1062 respectively. It is often assumed that Bach's extant violin concertos were written in his Köthen period (1717–1723): it can however not be proven from documentary evidence that any of them existed prior to around 1730. In September 1725 Bach performed organ music, accompanied by other instruments, in Dresden. The works he performed there have not been identified. More than a year later he composed several cantatas with an organ obligato part. Several movements of such cantatas were derived from earlier lost concertos, and resurfaced in
Brandenburg aktuell population of less than 2,000 is drawn lots and portrayed. "Brandenburg aktuell" is currently produced in "Studio 2" of the rbb television center in Potsdam-Babelsberg. "Brandenburg aktuell" achieved a market share of 23.3% in Brandenburg in 2017 and a viewing audience of 230,000 per broadcast. Brandenburg aktuell Brandenburg aktuell is the television magazine of Rundfunk Berlin-Brandenburg (rbb) for the state of Brandenburg. The programme is broadcast daily on rbb Fernsehen at 7:30 p.m., while the viewers in Berlin receive the Abendschau. The magazine informs about political and cultural life in Brandenburg and provides background information on special events. Also the