Octave Harpa (Cello-Tuning or C-G-c-a)  

•  top, back and body made of spruce, sawn, top with overlap, back aligned/flush ..

•  body stained, customized colour tone, neck open below (to enable plucking of sympathetic strings)

•  four-row keyboard, keys in natural wood (maple, cherry, pear or walnut) unstained

•  4 melody strings (cello tuning or C-G-c-a-);

• 12 sympathetic strings (under the keyboard), chromatic

•  sympathetic string mechanics: pegs in ebony, rosewood or art.ivory