5th century B.C.
Height 82cm, width 58cm, depth of sound box 9cm
Wood, bronze weights
This was the instrument associated with the worship of Apollo and it was always played by professional musicians. Kithara is constructed entirely of wood and is very similar to the ancient Phorminx. Its sound box is much larger and expands without any connections to the arms that are attached to the pecheis with a sheet of metal. It is usually made with seven strings and its main characteristic is the complex structure of its arms and its complicated apparatus found in the interior. The technical expertise associated with the construction of this apparatus demands a very high level of knowledge in applied mathematics and physics in accordance with the production of sound.