Multidimensional analysis of interdependence in a string quartet

In a musical ensemble such as a string quartet, the performers can influence each other’s actions in several aspects of the performance simultaneously. Based on a set of recorded string quartet exercises, we carry out a quantitative analysis of ensemble interdependence in four distinct dimensions of the performance (dynamics, intonation, tempo and timbre). We investigate the fluctuations of interdependence across these four dimensions, and in relation to the exercise that is being performed. Our findings suggest that although certain differences can be observed between the four dimensions, the most influential factor on ensemble interdependence is the musical task, shaped by the underlying score.