Historically, it was mostly used as a practice instrument and as an aid to composition, not being loud enough for larger performances. The clavichord produces sound by striking brass or iron strings with small metal blades called tangents. Vibrations are transmitted through the bridge(s) to the soundboard.
What are clavichords made out of?
Most clavichords are strung in pairs so are said to be double-strung. Yellow brass (70% Copper, 30% Zinc) is the usual stringing material, and the thickness of the wire varies from bass to treble. Heavier red brass (90% Copper, 10% Zinc) strings, or even overspun strings might be used in the extreme bass.
Are Clavichords still made?
Today clavichords are played primarily by Renaissance, Baroque, and Classical music enthusiasts. They attract many interested buyers, and are manufactured worldwide. There are now numerous clavichord societies around the world, and some 400 recordings of the instrument have been made in the past 70 years.