This project has a cinematographic connotation. The formulation of each piece follows a mental path settled. The four titles, instead, reflect my personal feeling during the composition: open spaces, altitudes. It's quite probable that the mental landscapes evoked aren't in consonance with the titles: this issue demonstrates how the meaning, frequently, is disconnected from significant. This dyscrasia is a further option for the listener, a further interpretative approach that will give new emotions.