Abstract
There is a musical communication in a cooperative performance such as a jazz session or orchestra. Players develop relationship or new musical expression with the communication. Such the communication has been analyzed from two aspects. One is musical rhythm such as tempo, and the other is physiological rhythm such as respiration. In this study, we analyzed the relationship between two aspects at the same time to investigate the mechanism of musical communication. The results revealed that (a) the degree of synchronization of music had positive correlation to the time course of the difficulty of music score, and the degree of the synchronization of respiration had negative correlation to the time course of the difficulty, (b) there was a musical interaction between players, and new music tempo pattern emerged based on it, (c) the degree of synchronization between music and respiration had negative correlation to the time course of the difficulty of music score. To interpret these results, we hypothesized that players paid more attention in difficult music part, and proposed the new communication model that consisted of musical level, physiological level and attention level.
