Foto: Arthur CaravanFragment of the cover of Atles enharmònic (self-produced, 2011), Arthur Caravan's album that includes a song inspired by Pythagoras. Music has accompanied humanity throughout history, however, it is not exclusive to humans. We know it exists in the animal

You probably remember Steven Spielberg's 1977 film Close Encounters of the Third Kind in which, in a memorable final scene, humans communicate with aliens with music, specially with that well known "D E C C G" melody that would be later hummed by everyone.