In the first movement of Sinfonia, Berio uses texts from Le cru et le cuit (The Raw and the Cooked) by the French anthropologist Claude Lévi-Strauss. The form of the piece is also inspired by Lévi-Strauss, who in his work on mythology had found that many myths were structured like musical compositions, with some myths having a "fugal" form and others resembling a sonata. One mythical transformation however, had a structure for which he was not able to find a musical equivalent, and Berio himself said that he used this form in his Sinfonia—though Lévi-Strauss did not initially notice this. Interviewed by Didier Eribon, Lévi-Strauss said:
