It has been nearly sixty years since the disciplinary prosecution of Professor I.T. Kakridis, which became known in the intellectual history of the country as "The Trial of the Tones", but its content has remained relevant. It is certain that the study of this volume will shed light on a subject that is still a problem. In addition to the enduring relevance of linguistic issues, the exposition of the morals of the scientific and intellectual community of the time is also of interest.