Ângelo Madureira searched the book Frevo Capoeira and Passo by Waldemar de Oliveira for concepts about frevo. In this book, Waldemar mentions that frevo is music and the step is dance. Through this concept, he developed the drum solo, where he replaced the frevo music with the sound of progressive rock. If you take the music out of the frevo, what do you dance to? As a result of this questioning, the show Delírio was born, a playful work, with strong characteristics of the way of representing popular dance on stage.