Brandenburg Concerto No. 5 as concerto grosso: the first, third and sixth of these concertos have however no concertino versus orchestra distinction. The concerto grosso was a Roman invention, typically featuring two violins and a cello as concertino, with a string orchestra of multiple string instruments per part. Venetian composers seemed slow in adopting the genre, and as Bach and his German contemporaries rather turned to Venetian music they may have been hardly aware of it. The fifth "Brandenburg Concerto" seems intended to be performed with one instrument per part, as to not overpower the harpsichord with its relatively restrained volume, and was not
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"