The work of Jose Ingenieros has been the subject of many explorations, as a trajectory that makes it possible to inquire about the conformation of multiple scientific knowledge between the 19th and 20th centuries. In this context, the book. The Musical Language (1906) has been, to a large extent, ignored by analysts. Specifically, we seek here to problematize the book as a symptom of a double tension. On the one hand, an intellectual tension regarding the analysis of the musical and musical aptitudes, which hangs between the biological determinism and the possibility of education of the passions it raises. This results in the second tension, which refers to a broader position regarding the culture of entresiglos: monopolize the culture or build hegemony around it.