‘Heterophony’ is the simultaneous sounding of variations on shared source material, in this case a small pool of horn techniques. The solo horn part is thus not ‘soloistic’ in any traditional sense; rather, it exists as a nucleus of technical demands and sonic outcomes that are adopted and re–worked by the remaining ensemble instrumentalists. A certain degree of timbral transposition, so to speak, occurs in this process; the idiosyncrasies of each instrument require different technical approaches and produce equally unique outcomes. The result is a constant play of techniques and, more importantly, colours. This ‘farbenspiel’ is non–hierarchical and introverted; it neither leads nor cycles. It is heterophonic: simultaneous play and a play of simultaneity.
April 2010: Tom Bettley (horn), Mic Spencer (conductor), LS Two, University of Leeds
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