"In Greek mythology, Calliope (/kəˈlaɪəpiː/ kə-LY-ə-pee; Ancient Greek: Καλλιόπη, Kalliopē "beautiful-voiced") is the Muse who presides over eloquence and epic poetry; so called from the ecstatic harmony of her voice. Hesiod and Ovid called her the "Chief of all Muses"." - (en.wikipedia.org 21.09.2020)
