Beginning in the 9th century, counterpoint reached its height between the 16th and 17th centuries. A chord that sounds restless and unstable, usually resolved to justify the sound for the listening ear. One type of contrapuntal composition for a certain number of voices, each entering one at a time in imitation of each other. The theme of the first voice is known as the subject, whereas the next voice to enter would be the answer. When all voices have stated their theme, the exposition is complete.
Subjects alternate with brief episodes, or short independent sections, throughout the piece.
Instrumental composition in several movements for piano solo or instrumental combinations with piano accompaniment. Originated in the 16th century for any work played and not sung, becoming prevalent in the 17th century. Originally an instrumental composition in dance style and in several unified movements. During the Baroque period, a typical suite would have featured movements called allemande, courante, sarabande, and gigue.