clavichordium

Clavichord comes from Medieval Latin clavichordium, from clavis (key) + chorda (string). The name is literal: keys that strike strings. The instrument appeared in Europe by the early 1400s and was the most common domestic keyboard instrument for three centuries. It worked by a simple mechanism: a metal tangent attached to the key struck the string from below and remained in contact, allowing the player to control vibrato by varying finger pressure. No other keyboard instrument allows this kind of direct touch.

The clavichord's defining characteristic was its quietness. The tone was so soft that it could barely be heard across a room. This was not a defect — it was a feature. The instrument was designed for practice, composition, and private meditation. Johann Sebastian Bach reportedly preferred the clavichord for composing and for teaching his students. His son Carl Philipp Emanuel Bach wrote in his Versuch über die wahre Art das Clavier zu spielen (1753) that the clavichord was the best instrument for developing musical expression.

The piano — invented by Bartolomeo Cristofori around 1700 — gradually replaced both the clavichord and the harpsichord. The piano could play soft and loud (hence pianoforte, from Italian piano e forte), combining the clavichord's expressiveness with the harpsichord's volume. By 1800, the clavichord had largely disappeared from musical life. It had been too quiet for concert halls and too limited in volume for the growing demand for public performance.

The early music revival of the twentieth century brought the clavichord back. Modern makers build instruments based on historical models, and a small community of players performs repertoire that sounds different — and, some argue, better — on the instrument it was written for. The clavichord remains the quietest keyboard instrument. In a world of amplification, its refusal to project is either a fatal limitation or a radical statement about attention.