Squares 3571113 - suono per uno spazio vuoto (sound for a empty space) is a work of sound designed to be exhibited in a dedicated space, just like a sculpture or a painting. It has been realised in the form of a web application, to listen to it you need an internet connection and a stereo audio system.
It appears as a continuous crossfading between tetrachords tuned on the 3rd, 5th, 7th, 11th and 13th harmonics of a fundamental A-432Hz. It has no end, its duration coincides with the time of contemplation. The sounds are generated electronically with sinusoidal oscillators.

The sound installation is accompanied by the visualisation of the score which is a graphical representation of the intervals, based on the notation system for just intonation invented by the Mexican-American music theorist Erv Wilson.

Squares 3571113 is ideally designed for a quiet space. It is not suitable for either outdoor or headphone listening. The quality of the audio system significantly affects the aesthetic result.