This essay presents an analysis of Crystallisation, a composition for a large orchestra. The work consists of a single movement, with a duration of approximately 15 minutes. / The analysis focuses mainly on formal structure, pitch organization, texture and rhythm. Some of the main topics are: large-scale form and subdivisions of each section, thematic interrelations of the sections, central pitches, pitch collections, chord structure and interrelations between texture and rhythm. / Throughout the course of the work, the music closely follows an overall process of searching for a valid structure and "core". In realizing this process the music takes on a variety of devices, among them: various kinds of symmetry within texture and form; thematic relations between separate sections through variants and material transformation; a coherent pitch organization which contains structural pitches, symmetrical collections and three main groups of chords; a complex and carefully structured rhythmic organization. / The concluding section of this essay compares between some of the properties of a crystal and the structure of various parts in Crystallisation.

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