Byzantine Music of the Greek Orthodox Church

Byzantine music (Modern Greek: Βυζαντινή μουσική) is the music of the Medieval Roman Empire composed to Greek texts as ceremonial, festival, or church music.[1] Greek and foreign historians agree that the ecclesiastical tones and in general the whole system of Byzantine music is closely related to the ancient Greek system.[2] It remains the oldest genre of extant music, of which the manner of performance and (with increasing accuracy from the 5th century onwards) the names of the composers