Answer:
The gatherings of the philosophical group called peripatetics led in music subject by Aristoxenus, helped drive such innovations as the development of major-minor tonality, the development of equal-tempered tuning, and the recreation of the musical styles of Ancient Greece.
Step-by-step explanation:
Aristoxenus was born in 375 bc in Tarentum, a Greek city in southern Italy and belonged to the group of philosophers called Peripatetics.
He is considered currently the most relevant music´s theorist in the classical world due to his empirical approach given in his work called Elementa harmonica where he vastly wrote about equal-tempered tuning and major-minor tonality and how these are related to the human soul as harmony and how they needed to be evaluated as a sole system by ear voiding cosmology and ethics. He seemed to follow Pythagorean theory
Aristoxenus flourished in the time of Alexander the Great who reigned in 336-323 and he was Aristotle´s pupil too.
Nowadays he became a key source for the study of ancient Greek music styles . It is said that he gave birth to musicology.