octo _ _ _ _ is a multimedia environmental artistic installation formed by eight modules in polychrome iron. These modules act as a generative and open musical ensemble, evoking the reading of the sounds that distinguish the territory. With a strikingly industrial DNA, the rigorously leveled modules contradict the organicness of the landscape. Presenting us with a feeling of suspension, they hypothesize a relationship of balance and beauty between human intervention and nature. Redness radiates from the illumination of each module thus suggesting fire, an element that we add to the earth, air and water of the place of implementation. The alignment of the eight modules (magic number of infinity) also meets the vertices of the Fort of St. John the Baptist, heritage building that references time and space. The work was designed to mesh with the concepts of the Esposende SmartCity project.