4D．planet (@4d.planet) • photos and videos

planet 4dBeside a geometrical part that has been calculated with the help of the graph theory, the Planet-4D model includes twelve ideograms that can either symbolize notes, chords or scalesEmmanuel Amiot and Gilles Baroin. KEYWORDS: twelve-tone, pc sets, geometrical model, 4D, isometries, orientation. ABSTRACT: The Planet-4D model introduced by Baroin 2011b is a