This text is written with the purpose of examining the preschool's harmony and disharmony. What is happening in moments of interaction with others, children and educators, what is it in today's preschool that stands in the way of this interaction, and what will be the consequences of the development that leads us farther and farther away from this interaction? This text begins with three stories where in the first two I portrayed two situations of interaction, one from my experience of the world of music and one from the preschool. The third describes what will illuminate one of the essay's more conflicting situations.In my text, I have produced an analogy between the preschool's practice and the musical practice, initially with the aim of letting music be supportive in explaining the unseen and the elements that can be difficult to understand in the preschool, but this work has come to featurethe musical sphere increasingly throughout the text’s development. The experience of the music has been able to explain situations in preschool, putting words to phenomenon that sems to be without words, but it has also let the musical aspect itself be explained. In my investigation of the harmony, I have mainly been inspired and led by Marcia Sá Cavalcante Schuback's collection of essays Praise to nothingness - essays on philosophical hermeneutics. Her description of nothingness and its events through inspiration, influence and improvisation has taken me and the text on a journey in how interaction in preschool can look and what it can create. Through her text, self -transformation has become a central concept in my text and thoughts.As I have come to the study of disharmony, I have looked at Foucault's concept of discourse.The discursive formations that have been and continue to be creating the preschool curriculum and conditions, and here I have also looked at the consequences of the increasingly efficiency, quality- and production-focused preschool that we see today. Marx's thoughts on alienationhave been allowed to lead the text's reasoning about the consequences of this development and I conclude my text by asking myself and you as a reader:"What will happen to our children?