Oscillators and entrainment are just as much a part of the Basic Auditory Toolkit of cognition as they are of the Basic Motor Control Toolkit. The kinds of rhythm that are found in human languages may reflect either audition or motor control, or both. And it may be hard to tell which is the primary source.
Language is both motor and perceptual, yet, fundamentally, neither.
So articulation still provides the most widespread vocabulary for describing speech. We observe that when producing speech the lips jaw, tongue and larynx move quasi-periodically and exhibit strongly stereotyped behavior. However, independent of the motor constraints, the perceptual system must also master difficult skills when learning a language. It learns sound patterns. Not every complex sound is an auditory pattern.