Co-creative communication in musical performance

There is a communication between players in a musical cooperative performance, and players create relationship or new musical expressions with the communication. Such communication is called "co-creation" and has been analyzed. The object of this study is to analyze co-creative communication of musical performance and establish a design principle of co-creative communication system between human and artificial agents. The experiment results (a) where musical difficulty is high, musical rhythms did not relatively synchronize, however respiration rhythms relatively synchronized, (b) there was a musical interaction between players, and new music tempo pattern emerged, (c) where musical difficulty is high, musical rhythm coupled with respiration rhythm strongly. To interpret these results, we hypothesize that players pay more attention in the difficult music part, and propose the new musical communication model, and discuss the design principle of co-creative communication system.