The article examines perceptual aspects of timbre within the context of avant-garde XX century music. An excerpt from a work by Luciano Berio was taken into account. We recorded it on 8 separate channels each of them devoted to small groups of homogeneous sounds. in order to obtain a global result that we could modify by subtracting one or more of the recorded groups. https://myjapanesehomers.shop/product-category/amulets/