An innate ability to move to a beat or understand musical rhythm is commonly referred to as an inborn sense of rhythm. However, there are multiple synonyms that capture this same concept. One term could be a natural feel for music, emphasizing the intuitive nature of the skill. Another synonym might be inherent musicality, which suggests that this ability is a part of one's identity or traits. Alternatively, musical aptitude could also be used to describe the ease with which someone grasps rhythm. Lastly, a sense of timing might also be a useful synonym, emphasizing the importance of coordination and pacing in musical expression.