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
Strathclyde Concertos Strathclyde Concertos The Strathclyde Concertos are a series of ten orchestral works by the English composer Sir Peter Maxwell Davies. Commissioned by Strathclyde Regional Council, each work features an instrumental soloist and small orchestra. The first concerto, for oboe and orchestra, appeared in 1986, with the tenth and last work, for full orchestra in 1996, the year Strathclyde Regional Council was abolished. Funding was also supplied by the Scottish Arts Council. The plan was that each concerto was to be used as a teaching tool. As each concerto was finished, a young composer chosen by the Council would visit the