  Sound consonance is the reason why it is possible to exist music in our life.
However, rules of consonance between sounds had been found quite subjectively,
just by hearing. To care for, the proposal is to establish a sound consonance
law on the basis of mathematical and physical foundations. Nevertheless, the
sensibility of the human auditory system to the audible range of frequencies is
individual and depends on a several factors such as the age or the health in a
such way that the human perception of the consonance as the pleasant sensation
it produces, while reinforced by an exact physical relation, may involves as
well the individual subjective feeling.
