These are the slides for my presentation in the "Rhythmic Coordination in Dyads" symposium, organised in the MPI in Leipzig on May 5 2008.

1. Co-operative Tapping: Musical and Social Interaction Tommi Himberg Finnish Centre of Excellence in Interdisciplinary Music Research Department of Music, University of Jyväskylä

3. Co-operative tapping Experimenter Communication channels Co-operation Stimuli Stimuli Task Role Intention Task Role Intention 1 2

6. Circular measures T can be set locally or globally

7. Rose histogram

11. Synchronisation vs. syncopation

14. Trials 1 2 P

15. Trials 1 2

16. Results - stability F = 4.241 df=5, p=.003

17. Results - asynchrony F = 4.072, df=5, p= 0.008