Keyboard concertos by Johann Sebastian Bach soloists, were all adapted into harpsichord concertos by the composer, BWV 1058, 1054 and 1062 respectively. It is often assumed that Bach's extant violin concertos were written in his Köthen period (1717–1723): it can however not be proven from documentary evidence that any of them existed prior to around 1730. In September 1725 Bach performed organ music, accompanied by other instruments, in Dresden. The works he performed there have not been identified. More than a year later he composed several cantatas with an organ obligato part. Several movements of such cantatas were derived from earlier lost concertos, and resurfaced in
Concertos (Michael Nyman album) Concertos (Michael Nyman album) Concertos is the 31st album by Michael Nyman, released in 1997. It contains three concerti commissioned from Nyman, the Mazda-sponsored "Double Concerto for Saxophone and Cello", featuring John Harle and Julian Lloyd Webber, the "Harpsichord Concerto" for Elisabeth Chojnacka, and the "Concerto for Trombone and Orchestra" for Christian Lindberg. The album was intended as the first in a series of Nyman recordings, as it reads "NYMAN EDITION No1: Concertos" on the EMI label, but Nyman's only other release on EMI (until "The Actors" in 2003), "The Suit and the Photograph" does not have such designation. The