Brandenburg Concerto No. 5 the concerto, with a preface by Besseler, in 1964. In 1975 Dürr's edition of the early version was appended to the NBA Series VII Vol. 2 publication of the "Brandenburg Concertos". The violone part for the third movement of the NBA edition of BWV 1050a was based on a spurious cello part for the BWV 1050 version of the concerto: Dirksen deemed the result of that combination unconvincing. Recordings of the fifth "Brandenburg Concerto" were released on 78 rpm discs: In 1973 Wendy Carlos included a Moog synthesizer performance of the fifth "Brandenburg Concerto" in her second "Switched-On Bach" album.
Keyboard concertos by Johann Sebastian Bach timing matched the publication of the first ever collection of keyboard concertos, the widely acclaimed and well-selling Organ concertos, Op.4 of George Frederic Handel published in London and Paris in 1738. The harpsichord concertos were composed in a manner completely idiomatic to the keyboard (this was equally true for those written for two or more harpsichords). They were almost certainly originally conceived for a small chamber group, with one instrument per desk, even if performed on one of the newly developed fortepianos, which only gradually acquired the potential for producing a louder dynamic. The keyboard writing also conforms to a