The clavichord is usually equipped with a leather covered hammer and long, thin, large key strings. In addition to the late 19th century, the clavichord has a lighter shell structure than the modern piano, and there is no metal frame or support. The action of the clavichord and the hammer are lighter, producing a lighter touch. When the clavichord came out, the range was about four octaves; and it gradually increased Most modern pianos reached in the 19th century range from seven octaves. The clavichord has always used devices similar to modern piano pedals from the beginning, but these devices are not always pedals; sometimes hand or knee levers are used instead.<br>
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