Brandenburg Concerto No. 5 the concerto to the set of "Brandenburg Concertos" in 1721 he had reworked it for a two-manual harpsichord, expanding the accompaniment with an additional cello part. Because of the limited input of the violin and flute solo parts, as compared to that of the harpsichord, the concerto can be seen as a harpsichord concerto, moreover, the first harpsichord concerto ever written. Nonetheless, the structure of the concerto and the soloist material of the harpsichordist are greatly indebted to violin concertos such as Vivaldi's "Grosso mogul" (which Bach had transcribed for organ, BWV 594) and Johann Ernst of Saxe-Weimar's G major
Piano concertos by Wolfgang Amadeus Mozart the concertos in recent years, notably by Philips and Naxos, some of the less-well known concertos may also increase in popularity. The first four concertos are only orchestrations of works by other composers; Gutmann calls these "juvenilia." Gutmann also calls "simplistic" the Concerto for three (or two) pianos and orchestra. With these exceptions, Gutmann writes of Mozart that "all of his mature concertos have been acclaimed as masterpieces". For example, he says Mozart liked his first original concerto, his fifth (K. 175), written at age 17, and performed it through the rest of his life. The discography for Mozart's piano