The Clavichord is an early keyboard instrument that was popular in the late Middle Ages and Renaissance periods. It is a stringed instrument that produces sound when its keys are pressed, similar to a piano. The strings are struck by tangents, which are small wedges made of metal or wood. The Clavichord was used for both solo and ensemble performances, and it was often used as an accompaniment instrument. It is considered to be one of the earliest keyboard instruments.