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The present article proposes the analysis of the music piece Acronon by the conductor and composer Hans-Joachim Koellreutter, based on the aesthetics of the indetermination of the composers John Cage and Pierre Boulez. Both twentiethcentury aesthetics diverge terminology into meaning, but it is still possible to find them in the process of creating the solo piano piece, Acronon. It will be sought to demonstrate how such sometimes divergent aesthetics converge in the work of Koellreutter, Acronon, through analysis and studies about the indeterminism and serialism of John Cage and Pierre Boulez.

Processos de indeterminação em Acronon de H. J. Koellreutter