Question: What genre did the heavy metal band switch to in their career?
Sentence (from "Spiritism"): Spiritism is a spiritualistic philosophy codified in the 19th century by the French educator Hippolyte Léon Denizard Rivail, under the codename Allan Kardec; it proposed the study of "the nature, origin, and destiny of spirits, and their relation with the corporeal world".
Relevant evidence: Yes