A sound panel for playing sounds and music, comprising a substantially flat soundboard made of wood, at least one tie which is fitted to the soundboard in order to subject the soundboard to a mechanical tension, an electromechanical transducer which is mounted on the soundboard in a nodal vibration point of the soundboard and can be connected to an electronic audio source in order to transduce into mechanical pulses and consequent vibrations of the soundboard audio information that arrives from the electronic audio source in the form of electrical signals, the soundboard comprising areas having mutually different thicknesses in order to evenly distribute transfer of energy from the soundboard to the air over a range of sound frequencies.