Concerto

Concerto is a three-movement musical work with a solo or main instrument accompanied by an orchestra. It first spark in the Baroque period alongside  with the concerto grosso, which is a small group of instruments with an orchestra. The concerto grosso was keep to the baroque period, while the solo concerto remained up to this day as a fundamental musical force.

Classical loves balance and it can be seen in concerto where the soloist and orchestra are equally important. Mozart, as a boy, made arrangements for harpsichord and orchestra of three sonata movements by Johann Christian Bach.He wrote one concerto each for flute, oboe, clarinet, and bassoon, four for horn, a Concerto for Flute, Harp, and Orchestra, and a Sinfonia Concertante for Violin, Viola and Orchestra. They all maneuver and explore the characteristics of the solo instrument. Mozart, however, treats sonata form in his concerto movements with so much freedom that any vast categorization is not possible.

Solo instruments in classical concertos include violin, cello, clarinet, bassoon, trumpet, horn and piano.