PLANET4D

planet4dPlanet 4D Orinal Model feature the most Symmetrical Positionning for 12 Notes or Musical Objects ↩︎; On the Hypersphere of Chords, we display all minor ans major Triads ↩︎;Planet4D Videos; Planet4D Videos Theory; From Circle to Hyperspheres. When Tonnetze go 4D. Isometries & Spectral. Graphs & Tonnetze. Temperaments. Episode I. Episode II. Episode III.