Piano concertos by Wolfgang Amadeus Mozart followed by the works by Charles Rosen, and Daniel N. Leeson and Robert Levin. The first complete edition in print was not until that of Richault from around 1850; since then the scores and autographs have become widely available. Concerto No. 7 is for three (or two) pianos and orchestra, and No. 10 is for two pianos and orchestra, leaving 21 original concertos for one piano and orchestra. Early keyboard concertos were written by, among others, C.P.E. Bach, J.C. Bach, Soler, Wagenseil, Schobert, Vanhall and Haydn. Earlier still, in the Fifth Brandenburg Concerto by J.S. Bach, the keyboard part is
Brandenburg Concertos of silver. The autograph manuscript of the concertos was only rediscovered in the archives of Brandenburg by Siegfried Wilhelm Dehn in 1849; the concertos were first published in the following year. The manuscript was nearly lost in World War II, when being transported for safekeeping to Prussia by train in the care of a librarian. The train came under aerial bombardment, and the librarian escaped the train to the nearby forest, with the scores hidden under his coat. In the modern era these works have been performed by orchestras with the string parts each played by a number of players,