The article essentially claims that changes in musical styles and traditions can lead to broader societal changes, potentially undermining the established order

The article essentially claims that changes in musical styles and traditions can lead to broader societal changes, potentially undermining the established order and laws of the state, and that the emergence of "new music" that prioritized sensationalism and audience pleasure over traditional forms and harmony could be seen as a threat to social and political stability (based on Plato's assumptions). From my humble point of view yet another instance of "correlation does not imply causation".