Book excerpt: Brazilian Research on Creativity Development in Musical Interaction focuses on creativity that involves interactive musical activities, with different groups, such as professional musicians, students, and student teachers. It seeks to present research with a theoretical foundation on musical creativity and interaction, within psychology and music pedagogy. A collection of ten contributed essays present studies that promote understanding of the possibilities of creative development from the interactive process. All are undertaken within the context of teaching and learning, whether one-on-one or group lessons, ranging from elementary school music class, instrument study, choral singing, composition and teaching an autistic student.