Keyboard concertos by Johann Sebastian Bach left Weimar in 1717. Many of Bach's orchestral harpsichord concertos are adapted from a model with one or more violin solo parts. Several of these earlier models are extant. The oldest of these is Vivaldi's concerto for four violins, RV 580, published in 1711, model for Bach's concerto for four harpsichords, BWV 1065. Bach replaced the part of his fourth "Brandenburg Concerto", BWV 1049, composed in 1721 or earlier, by a harpsichord part when he reworked it to the harpsichord concerto BWV 1057. Bach's extant violin concertos BWV 1041–1043, two for a single violin soloist and one for two violin
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