'Casa do Choro' is an important musical center in Rio de Janeiro. It is a space for concerts, exhibitions, classes and musical research. I had a wonderful conversation with Paulo Aragão, one of the coordinators. We talked about his work, Choro music and its development. We also discussed about D. Milhaud's composition 'Les boeuf sur le toit', that can be considered as a cubist collage of Brazilian popular music, including 'Corta Jaca' by Chiquinha Gonzaga.