Part I: Mental Timekeepers Internal Clocks, Oscillators and Complex Dynamics 1. Timekeepers versus nonlinear oscillators: How the approaches differ 2. Considerations regarding a comprehensive model of (poly)rhythmic movement 3. Limitations of the scanning procedure in assessing changes in coordination dynamics due to learning 4. The learning and transfer of multifrequency patterns Part II: Tapping and Synchronization 5. On the nature of variability in isochronous serial interval production 6. Synchronization error: An error in time perception 7. Subliminal temporal discrimination revealed in sensorimotor coordination 8. Tempo change: Timing of simple temporal ratios 9. Dynamics and embodiment in beat induction Part III: Time Perception and Estimation 10. Demonstrations of time-shrinking 11. Spatial attention deficits and the perception of interaural rhythmic sequences - a preliminary analysis 12. Information processing in the central executive: Effects of concurrent temporal production and memory updating tasks Part IV: Expressive Timing in Music 13. Rhythmic aspects of vibrato 14. On time: The influence of tempo, structure and style on the timing of grace notes in skilled musical performance 15. Rhythm in music performance and perceived structure Part V: Rhythm and Meter in Music and Speech 16. Complexity measures of musical rhythms 17. Why musicians tap slower than nonmusicians 18. Effects of delayed auditory feedback on speech: Just a problem of displaced rhythm? 19. Preliminary investigations of French and English speech rhythm: Are cross-linguistic differences in rhythmic organisation primarily metrical in origin?