Sumac's 'What One Becomes' CD is a captivating blend of post-metal and sludge, featuring members of Isis, Baptists, and Botch. This album showcases their signature heavy, atmospheric sound, with tracks that explore themes of existentialism and human nature. With its intricate guitar work, thunderous drums, and haunting vocals, 'What One Becomes' is a must-have for fans of experimental metal looking for a thought-provoking listening experience.