The clavichord is one of the earliest keyboard instruments, dating back to the 14th century. It produces sound when small metal tangents (called "tangents") strike the strings, causing them to vibrate. The clavichord is known for its delicate, intimate sound and its expressive capabilities, allowing for subtle variations in dynamics and articulation.
2) Harpsichord
The harpsichord is another early keyboard instrument that originated in the 15th century. Unlike the clavichord, which produces sound through direct contact between tangents and strings, the harpsichord uses quills (or plectra) made from bird feathers to pluck the strings. This mechanism gives the harpsichord a bright, distinct tone and a more percussive sound compared to the clavichord.