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clavicytherium

clavicytherium Mus.
  (ˌklævɪsɪˈθɪərɪəm)
  [Better clavicitherium, med.L., f. clāvis key + cither.]
  An early musical instrument of the harpsichord type, being really an upright spinet.

[1511 Virdung Musica getutscht (Basel), Claviciterium. 1611 M. Prætorius Syntagm. Music. (Wolfenbüttel) II. xli, Clavicytherium.] 1819 Pantologia III, Clavicytherum, the clavichord. 1860 Rimbault Pianoforte 28 The clavicytherium, or keyed-cithara. 1880 A. J. Hipkins in Grove Dict. Mus., Clavicytherium, an upright musical instrument allied to the horizontal harpsichord and spinet. 1888Mus. Inst. Plate vi. Named Clavicytherium by the earliest writer on musical instruments, Virdung..who gives a drawing of one. It is in fact a spinet set upright.

Oxford English Dictionary

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