Abstract
During the spring of 1980 the first author recorded response curves and modes of vibration of over forty harpsichords. About half of these instruments were newly built, while the others were antiques in museums. Sinusoidal forces of appropriate frequency were transmitted to each bridge pin in turn. Sound pressure levels were measured, and a driving point response curve was plotted for each harpsichord. Chladni patterns were detected by vibrating the glitter-covered soundboard; at certain frequencies of vibration the glitter formed stable patterns which were then photographed. It was found that newer harpsichords tended to respond at higher frequencies than the antique instruments.
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