The news of the ousting of Apostolos Kostios, Emeritus Professor of the University of Athens, is very sad. His contribution and presence was decisive for the musical things in Greece in the scientific and artistic field. His presence was also decisive for those who were lucky enough to attend his classes and get to know him closely. The passion with which he taught, inspired a generation of young scientists to turn to musicological research and love Greek art music. The same passion characterized his communication with people; his speech had the power to captivate you, to electrify you. An integral character, with a rare ethos, it was inevitable to be a role model for his students and a point of reference for his associates. His funeral took place in a close family circle. Those wishing to send a message of condolence to the family can contact using this address.