Constantinos Angelidis was born in Tripoli (Greece) in 1964.
He studied Theology at the Athens Higher Theological School and in the faculty of Theology of the University of Athens. He also studied Byzantine Music with
Constantinos Tasopoulos and Lykourgos Angelopoulos.
With a scholarship from the Alexandros Onassis foundation he took part as a researcher in the programme of research into and analysis of the works of the Byzantine Maïstor Ioannis Koukouzelis.
Since 1981, he has served the art of chant. Since 2014, he has been Protopsaltis at Aghii Anarghyri, the historic dependency (metochi) of the Holy Sepulchre in Athens (Plaka district).
Since 1988, Constantinos Angelidis has taught music in schools, educational institutions, conservatoires, and monasteries.
from 1994 to 2005, he undertook the organisation and teaching of the Choir of the fathers of the Vatopaidi Monastery on the Holy Mountain of Athos, which he directed on the 14 CDs which have been published with chants by classic Byzantine and Vatopaidi composers.
He also directed a choir of cantors for the publication of a double CD in collaboration with the Chilandari Monastery on Mount Athos.
Since 1996, he has taught at the School of Byzantine Music of the Archbishopric of Athens (Church of the fount of Life, Akadimias St).
In 2012 he taught Byzantine Music in Cyprus and since 2015 he has also been teaching in Romania.
From 1983 to 2008, as a member of the Hellenic Byzantine Choir, directed by Lykourgos Angelopoulos, he has taken part in more than 900 events in Greece and in 30 countries in Europe, Asia, America, and Africa.
He worked as a music producer with Hellenic Radio from 1985 to 2005, while since 2009 he has worked with the radio station of the Church of Greece in the field of Byzantine music.
In late 2005, Constantinos Angelidis set up the Centre for Studies of the Psaltic Art and the TROPOS Byzantine Choir, which he has directed in liturgical events and concerts in Greece and in 18 other countries, as well
as in the publication of CDs with classic as well as hitherto unpublished works by Byzantine and more modern Athonite and Constantinopolitan composers