Vulture’s Wisdom Volume I Heiro Imperium 3 stars Opio first burst onto the underground hip-hop scene 15 years ago as one-fourth of Oakland’s Souls of Mischief crew, which was at the center of the Bay Area’s influential Hieroglyphics family. Alongside similarly bohemian-but-rugged MCs A-Plus, Phesto and Tajai, Opio picked up the abstract storytelling mantle of [...]