INVOLUTION AXIS EVOLUTION AXIS
(Orbit of Musical Divisions)

The Do orbit encompasses all the others... Each note on the harmonic series was divided by the preceding note... The involution axis proceeds inwards to five steps... to Mi (FLAT)... The sixth note La falls between the Do and the Sol... and the last two osculate from the Ti towards the center (involution) to the Re which expands outward to the evolution axis.