The purpose is, through whose chromatic properties, to recall, in a modern version, the colors of the Trade Union Palace but with a new aspect that give a renewed vigor to the overall image of Tauras Hill of Vilnius. This synergistic relationship between nature and architectural mass is what has delineated the elaboration of the form of the National Concert Hall which is defined by a plan in which the external limit is jagged in a sequence of cavities. This system of cavities, which in the outer space are sometimes paved and sometimes treated in green, is necessary so the trees that are placed in can enter into strong visual contact with most of the internal spaces. The elevations are defined by the abundant presence of windows with the rythm of the wooden frames that establish the visual connection between the visitor and the surrounding vegetation and, at the same time, allow natural lighting as comfortable as possible.