Set in a future where artificial intelligence reigns, the ninth full-length from Brazilian metal vets Angra connects the scientific and philosophical concepts of their three previous albums into one massive power-metal experience. Bolstered by lofty orchestral arrangements, dazzling guitar work and the operatic vocals of Fabio Lione, songs like "Travelers of Time", "Insania" and "Caveman" offer dizzying doses of thrash, djent and Latin percussion, while "Black Widow's Web" features guest shots from Arch Enemy vocalist Alissa White-Gluz and Brazilian pop star Sandy.