PIENZA, ITALY A440 is a project born within a hospitality center for musicians and composers in Pienza, aiming to explore the synergy between colour, form, and music. The creative process was innovative and rich in research—a dialogue between different expressive languages, in which sound vibrations found a visual counterpart in tones and geometries. It is an experience where musical harmony translated into colour, giving rise to a sensory journey that unites visual arts and sound in a single expressive wave.