The solo project of classically trained vocalist Kristin Hayter, Lingua Ignota fearlessly addresses themes of violence, misogyny, and revenge. Frequently drawing comparisons to Diamanda Galás, Hayter's vocals range from a delicate soprano to harsh shrieking, and her recordings, including 2019's Caligula and 2021's Sinner Get Ready, are ambitious, bracing blends of opera, power electronics, avant-metal, and folk influences.