Studying the Effect of Creative Joint Action on Musicians' Behavior

How does the individual behavior of a musician change in solo Vs. creative joint action? In this paper we consider music performance, an ideal ecological test bed to investigate non-verbal social behavior, to compare the expressive movement of violinists when playing solo or in a string quartet ensemble. In the presented study, by measuring its Sample Entropy, we observe that the movement of a musician’s head in creative joint action is more regular with respect to the solo condition.