of the fourth key was being in these two short articles, that in the older instru- we can recognize shortly after 1400 A. D. under the sounded, it was impossible to obtain the notes of the ments on the extreme left of the keyboard there ap- names “manicordium” and “clavicordium.” The keys, first,… … Fig. 7._An Upright Harpsichord. Fig. 5.—Harpsichord (XVII. Century). Fig. 6.—Cristofori Pianoforte. THE DEVELOPMENT OF THE MODERN PIANO.
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