What is "claviharp"

The claviharp is a 19th-century musical instrument that combined a harp with a keyboard. J. C. Dietz invented the instrument in 1813 CE. His grandfather was one of the first upright piano manufacturers. Struck by what he saw as difficulties and defects of the harp, in 1810, he built an instrument à cordes pincées à clavier, which connected a keyboard to the harp strings.

He made the instrument to address limitations of the harp—susceptibility of catgut strings to atmospheric change, inconsistency of sound as finger motion varies, limited diatonic scale (without pedals), and lack of dampers. The claviharp's keyboard plucked the strings (as a harpsichord) rather than strike them (as a piano).