This monograph presents a working description of a special class of acoustical outputs, termed extra-complex sonorities that are the result of desynchronizing robust parameters involved in the production of sound within scaled and multidimensional networks by instruments and voices. The purpose of such a description is to provide a framework for understanding the mechanical and perceptual aspects of extra-complex sonorities in order to develop a theory that will guide the practitioner and listener towards finding the relevant landmarks of those performances and/or compositions that feature...