Piano concertos by Wolfgang Amadeus Mozart it was probably J.C. Bach, whom Mozart admired, who introduced the structural innovation of allowing the keyboard to introduce new thematic material in its first entry. Concertos Nos 1–4 (K. 37, 39, 40 and 41) are orchestral and keyboard arrangements of sonata movements by other composers. The next three concertos (K. 107/1, 2 and 3), which are not numbered, are arrangements of piano sonatas by J.C. Bach (Op 5. Nos. 2, 3, and 4, all composed by 1766). Based on handwriting analysis of the autographs they are believed to date from 1771–72. Concerto No. 5, K. 175 from 1773 was
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