In his compositional and improvisational doing Giacomo Grassi deconstructs the musical mathematics entities of his world. He creates languages by formulating other sonic and psychical geometries, traced or drawn on different and motile surfaces. Thus the necessity of new axioms (what is self-evident in phenomenological terms) and postulates, as starting points of his Ricercare.
The sonorities and timbres, as well as his harmonics choices and the attention to the forms, constitute the focal points of the searching flux (Ricercare). The pianist cast, shape or defibre a musical narrativity of his own, always in search of vision openings. In the sound and textures of Giacomo Grassi, it can also be noticed the influence of his electroacoustics composing.
Among the composers who mainly inspired him in the research of his own pianistic aesthetics, there are: Giacinto Scelsi, Cecil Taylor, Mal Waldron, Dmitrij Šostakovič.