This article describes the most relevant observations about music pedagogical intervention in a kindergarten children's group in Santiago of Chile. Through this intervention was possible to establish an appropriate methodology to develop the skill of corporal expression related to musical stimulus. It has been designed didactic strategies for this purpose. After the analysis of this intervention, it was found that the use of body schemes, in a semi-structured improvisation context, was beneficial for generating communication codes into the group, contributing to the construction of children's intersubjectivity. On the other hand, these observations in some preschool children, allowed to identify possible causes about bodily disconnection in front of musical stimulus.