2017 release. Sigma is the eighteenth letter of the Greek alphabet. It is the initial of the Greek word "Σιωπή", meaning Silence. Sigma is also used as a symbol for the summation operator. "Silence has the sound of shame". We are submissive to unspoken rules of obedience, which are sealed with a spiral of silence. Our chains are bound to break by speaking out as a mass, as a musical ensemble willing to sing out liberation. Mother of Millions is a five-piece progressive/alternative metal band from Athens, Greece, formed in 2008. The sound of Mother of Millions can be described as equally massive as cinematic. An intense experimentation involving elaborate rhythms, folk aesthetics and progressive rock tunes.