The clarinet is a woodwind instrument with a cylindrical bore and a flared bell. It is part of the largest woodwind family and comes in various sizes and pitches. The clarinet was invented by Johann Christoph Denner in the late 17th century by adding a register key to the chalumeau. The clarinet is widely used in classical music, military bands, klezmer, jazz, and other genres. The word "clarinet" may have originated from the French "clarinette," which is related to the Latin root "clarus" meaning "clear."