EN
In his theory of sonology aiming at the systematization 20th-century sound phenomena Józef M. Chominski's managed to create a unique theoretical system, unprecedented in the musical thought of the 20th century, which on the one hand reflected changes in compositional techniques and on the other opened up to composers perspectives of creating new sound systems, regulators of timbral qualities and new structural systems. The article opens with a preview of most important 20th-century music theoretical concepts relating to the problem of sound. Chominski's theory is placed within their context, its methods and terms, such as 'sonoristic modulation', criteria (e.g. sound source) and classifications (e.g. of modulated sounds) are explained. Finally, the authoress evaluates cognitive values of this theory and indicates perspectives of its development.