ABSTRACT
Joint action is a pervasive and important feature of human sociality. Musical joint action may provide a controlled setting within which to investigate characteristically human social cognitive processes and social interactive dynamics. This chapter focuses on musical performance paradigms rather than on paradigms investigating musical perception or other related phenomena, such as dance. When one investigate multiple agents listening to or performing music together, several important factors come into the picture. First, each agent's performance of or response to the music can influence the other agents' performance and response. Second, the reciprocal influence among the different agents also occurs at the level of the models they employ to predict what is coming next in the music. This is because each agent is not only modeling the music but is also modeling the other agent's actions and intentions, as well as the other agent's model of her actions and intentions.
