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
2004 Brandenburg state election significantly. The CDU also lost votes and fell into third place. Matthias Platzeck (SPD) remained Minister-President and continued the previous SPD-CDU coalition. 2004 Brandenburg state election The Brandenburg state election, 2004, was conducted on 19 September 2004, to elect members to the Landtag of Brandenburg, the state legislature of Brandenburg. Before Brandenburg, the SPD had lost many state elections, what was connected to Gerhard Schröder's Agenda 2010 policy, which was a reaction to the problems of constantly high unemployment in Germany. The establishing of a lower welfare payment (called "Hartz IV" after an expert who had invented it) for people