Keyboard concertos by Johann Sebastian Bach 1059) which adds an oboe to the strings and continuo. Most of Bach's harpsichord concertos (with the exception of the 5th "Brandenburg Concerto") are thought to be arrangements made from earlier concertos for melodic instruments probably written in Köthen. In many cases, only the harpsichord version has survived. They are among the first concertos for keyboard instrument ever written. The earliest extant sources regarding Bach's involvement with the keyboard concerto genre are his Weimar concerto transcriptions, BWV 592–596 and 972–987 (), and his fifth "Brandenburg Concerto", BWV 1050, the early version of which, BWV 1050a, may have originated before Bach
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