This chapter introduces three distinct concepts of entrainment and relates them to the topic of musical embodiment. Drawing on work in music and other disciplines, the chapter discusses the relationships between “long-term,” “short-term,” and “physical” entrainment. Given the close relationship between entrainment and bodily movement, it is argued that each of these concepts implies a particular type of musical body. These types are discussed and compared, and their salient differences identified. The chapter closes with a brief exploration of these three types of entrainment and their related musical bodies, as they can be seen and heard in the course of playing J. S. Bach’s Prelude in C minor, BWV 847.