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Auditory Fusion and Holophonic Musical Texture in Xenakis's Pithoprakta

One of the most important factors, which affect the perception of textures, depends on the fusion of separate components of the musical passage. The possibilities of such fusion occurring are almost certain in some cases. This is due to the way our auditory system is constructed and the way it functions. The main properties, which promote fusion in a music passage, include the high density of attacks and the timbral similarities of the sounds being played. The latter element includes various spectral features of the sounds. In addition the register of the instrumental parts and their dynamic range promotes textural fusion. This paper uses this set of properties to evaluate and quantify one instance in Iannis Xenakis’s Pithoprakta (1955-56) where two or more simultaneous sound streams are easily perceived as forming a coherent whole.