Human social interaction often involves the temporal synchronization of joint actions between two or more individuals or a self-synchronization with an external source. Music ensemble requires precise and flexible coordination, involving body and mind. 

This study aims to investigate the subconscious mechanisms that govern coordination and communication between singers during voice ensemble performances. Specifically, the study will observe: i) the consistency in the structural characteristic of the asynchronies across the same excerpt and different excerpts, performance situations (rehearsal vs concert; with and without visual contact) and room acoustic conditions; ii) the leader-follower relationships; iii) the synchronization evaluated through breathing; iv) the synchronization of consonants. 

The combination of controlled experiments and more ecological observations will provide comprehensive and well-substantiated results. The investigation of synchronization evaluated through questionnaires and statistical data analysis will reveal the nature of the mutual adaptive relationships among singers during vocal ensemble performances. A better understanding of the subconscious mechanisms that foster excellence and interpersonal communication will be of particular interest to music pedagogy, as a means to establish strategies to pursue performance excellence, and to psychology research aimed at clarifying human interpersonal communication and coordination. The study will improve ensemble national curricula, refine rehearsal techniques identifying the more appropriate strategies to excel in music performance, and expand the body of knowledge of interpersonal interaction and communication.