The author follows a new materialist approach to consider the informal and collaborative creative gathering called jamming as creative play, and she makes a case for the jam as a transformative event of genuine intrasubjective dialogue. She uses Karen Barad's theory of agential realism and Hans-Georg Gadamer's ethics of play to argue for the jam as an ethico-socio-political event that supports the communal and creation-centered aspects of our collective existence and offers an opportunity for learning responsibility (or "response-ability," as Karen Barad calls it) and accountability. She concludes that jamming, like creative play, offers the kind of cooperative underpinnings essential to our relational and ontological makeup.