The term 'Piece for Soloist and Orchestra' can be summarized as a CONCERTO, which is an instrumental composition typically featuring a solo instrument accompanied by an orchestra. A CONCERTO is usually in three movements, with the soloist playing the melody in the first and third movements, and the orchestra playing the accompaniment in the second movement. The CONCERTO is one of the most popular forms of classical music, and has been composed by many famous composers such as Mozart, Beethoven, and Brahms.