Zitherlike instruments in the form of a rectangular box with a keyboard set in the long side. Strings, usually two per note, run from hitch pins on the left over a bridge to tuning pins at the right. Brass tangents on the rear portion of each key strike the strings from below to produce sound.
Source: Art & Architecture Thesaurus
http://vocab.getty.edu/page/aat/300041675
]]>