The document summarizes the history and characteristics of the concerto form. It evolved from the concerto grosso of the Baroque era featuring a small group of soloists against an orchestra. During the Classical era, composers like Bach helped transition the form between the Baroque and Classical styles. A concerto combines a solo instrument virtuosity with the full orchestra, with both the soloist and orchestra seen as equally important. Common types of concertos include those for violin, cello, and piano.