The goal of the project is to study expressive moments in augmented music realities. Expressive moments are subjective experiences of optimal interaction with, or guided by, music, such as flow, euphoria, and ecstasy. These moments will be studied in settings that involve collective music-making in augmented music environments. The environments include technologies to measure physical and physiological aspects of musicians’ interaction, and a 3D spatial audio rendering system (to create and control immersive audio environments expressively). The hypothesis underlying our study is the cognitive-motivational loop hypothesis. It assumes that cognitive, emotional, and motor processes reinforce each other in view of musical reward satisfaction. The hypothesis is assumed to be central for our understanding of human meaning formation and empowerment in relation to music. Valorisation of the results have a focus on empowerment and on artistic installations that enhance experience of expressive moments. The present project can be considered a case study in “augmented humanities”, which we consider as a complementary branch of humanities, next to “digital humanities”.