Digital echos and virtual ethos inquiries will be expressed in the fields of Aesthetics, Ethics, philosophy of technology and media, philosophy of mind and Artificial Intelligence, phenomenology of sound perception, philosophy of nature and sound technologies, philosophy values in computer music and other. We encourage also discussions on the contemporary technological practice in music with a holistic approach from the Pythagorean to the Xenakian model in order to exalt the diachronic relation between music and technology from the ancient Greek era to our days.