Occupational identity development is an important, complex component of music teacher education. Preservice teachers may experience dissonance between and/or integration of their musician and teacher identities, and scholars have found early field experiences to be important in undergraduates' transitions into the teacher role. The purpose of this instrumental case study was to examine the occupational socialization and identity development of preservice music teachers in an early field teaching experience with a focus on preservice teacher and P-12 student interactions. I conducted observations, interviews, and a demographic survey during a semester-long early field experience. Findings centered around (a) the dynamic nature of preservice teachers' identities; (b) the importance of peers, music teacher educators, and students to preservice participants as they engaged in the process of becoming music teachers, and (c) the momentary embodiment of music teacher and student roles. I connect these findings to prior research and suggest implications.