Bach cantata cantatas are assumed to date from this period: Bach worked in Weimar from 1708. He composed a secular cantata Was mir behagt, ist nur die muntre Jagd, BWV 208 in 1713. The composition of cantatas for the (court chapel) on a regular monthly basis started with his promotion to in March 1714. His goal was to compose a complete set of cantatas for the liturgical year within four years. Cantatas 54 and 199 were performed within the cycle but possibly composed earlier. Bach worked in Köthen from 1717 to 1723, where he composed for example the "Brandenburg concertos". He had
Piano concertos by Wolfgang Amadeus Mozart given by Cliff Eisen in 1997 is: Cadenzas to at least K. 466 and 467 also possibly existed. These cadenzas are part of the public domain and can be accessed here: http://imslp.org/wiki/36_Cadenzas,_K.624_%28Mozart,_Wolfgang_Amadeus%29 Piano concertos by Wolfgang Amadeus Mozart Wolfgang Amadeus Mozart wrote 23 original concertos for piano and orchestra. These works, many of which Mozart composed for himself to play in the Vienna concert series of 1784–86, held special importance for him. For a long time relatively neglected, they are recognised as among his greatest achievements. They were championed by Donald Francis Tovey in his "Essay on the Classical Concerto"