This thesis analyzed the agentic engagement by Chiquinha Gonzaga and their social structure, with the networks established and the values prevailing at the time, as well as the urban and social transformation that took place in Rio de Janeiro in the mid-nineteenth century. The life of Chiquinha Gonzaga offered an excellent example of agency, to the extent that through music and their deliberate commitment of activity as a composer enabled the social transformation of the structure and social practices, as stated by Margaret Archer. Although the agency concept is relatively new in sociology, the theme of the relationship between individual and society or agency and structure developed since its formation, as a mirror of various social contexts and the creation of theoretical models and categories that aimed to apprehend reality more strictly. Although the development of these concepts have alternated with primacy for one or another, both are intrinsically linked in different ways in which they shape social action and in this sense we opted for an analysis of social settings features of the mid-nineteenth century in Rio de Janeiro. We can say that the relativization of the rigid structures that prevented the emancipation of women was in part from the advent of the small press, the little theatres, and their combination with entrudo and carnival that loosened the rigid conservative structure that limited the performance of the popular universe. Added to this, the personality and character of the songwriter who contributed to the advent of new forms of life for women.