sentences:  In 1984, a manuscript of his latest research led to the very origin of the well tempered quantitative poetic meters of the Indo-Persian languages.This manuscript was a complement to the 1974 publication, "La métrique diatemporelle".The structured approach which finally led him to the Greek linear musical scales and harmonics and consequently to the cybernetic models regulating the rings of aesthetic group, deals evidently with the intensive forms of diachronic harmony; however, he believed that in languages where the short syllables are more frequent than the long ones (referring to the duration without any other arbitrary engagement which may be added to it) extensive diachronic eurythmy is in fact not only practicable, but very valuable too.