<P> Amphion and Zethus were the sons of Antiope, who fled in shame to Sicyon after Zeus raped her, and married King Epopeus there . However, either Nycteus or Lycus attacked Sicyon in order to carry her back to Thebes and punish her . On the way back, she gave birth to the twins and was forced to expose them on Mount Cithaeron . Lycus gave her to his wife, Dirce, who treated her very cruelly for many years . </P> <P> Antiope eventually escaped and found her sons living near Mount Cithaeron . After they were convinced that she was their mother, they killed Dirce by tying her to the horns of a bull, gathered an army, and conquered Thebes, becoming its joint rulers . </P> <P> Amphion became a great singer and musician after his lover Hermes taught him to play and gave him a golden lyre . Zethus became a hunter and herdsman, with a great interest in cattle breeding . They built the walls around the Cadmea, the citadel of Thebes . While Zethus struggled to carry his stones, Amphion played his lyre and his stones followed after him and gently glided into place . </P> <P> Amphion married Niobe, the daughter of Tantalus, the Lydian king . Because of this, he learned to play his lyre in the Lydian mode and added three strings to it . Zethus married Thebe, after whom the city of Thebes was named . </P>

Who builds the walls of thebes with song