Five objects secure five copper strings of adjustable tension, the lenth of these is inspired by the principle of self-similarity necessary to generate fractals. For this reason the numerical succession of "8,13,21,34,55" centimetres.
The frequency in inverse proportion to the lenth of the string, the longer the string, minor shall the number of vibrations per second and less acute the sound produced, so for acute sounds thinner and tighter strings shall vibrate, while long and less tight strings shall produce low-pitched sounds.
The electrochemical activity of the brain by "brainwaves" or by "electromagnetic waves" is calculated in "cycles per second" (Hz). Four wave bands exist + 1 extremely high one, (following other practically unreachable to the human mind) and each of these wave bands corresponds to a determinate number of Hz and a "state" of human brain activity, respectivly (D) DELTA, (T) THETA, (A) ALPHA, (B) BETA, (G) GAMMA where:
D of minor frequency, it is assigned to the longest string of 55cm
T of medium-minor frequency, the medium sized string of 34cm
A of medium frequency, the medium sized string of 21cm
B of medium-maximum frequency, the medium-short sized string of 13cm
G of maximum frequency, the shorter sized string of 8cm
Then five solar panels are placed that transform the energy recieved into electrical energy, that action five small motors each positioned above the various strings. When the motor recieves energy it starts to spin, this circular movement allows small pinions to roteate and pluck the copper string that, vibrating, emits a sound that shall be the frequency assigned. The sound that comes out is continuous drone, and the interactor is prompted to play the object covering or letting the light filter to the five panels, such as to control the different "wave bands" of the human mind in harmony with the sun.
The sound is amplified by small "piezo" microphones, modified and ultimately sent to the loudspeaker in exit. The suitcase is devided into five sectors relative to the different monostring and separated by cork to assure a good audibility and a crisp and clean sound.