This thesis is a study of the thematic choices made by the members of Clube da Esquina, a group of musical friends in Belo Horizonte, Minas Gerais, who were in their heyday in the 1970s. The central question that will guide the analysis of the songs is how ideas, thoughts and discussions of group members were transformed into music. The goal is to understand their choices of themes as objects of collective enjoyment. Theme here is taken to mean not only the subjects of song lyrics but also the musical choices made. Among the key themes analyzed are the cultural influences of Minas Gerais State, their relation with global references, the social, political and cultural context of the 1970s, and ethnic groups having as a common characteristic the fact that all were subjugated at some moment in history. Quite diversified and at times seemingly opposed to one another, these themes are harmoniously present in the music of Clube da Esquina, highlighting the coexistence of the different backgrounds of the various members, made possible by the ties of friendship.