Proceeding of the past Conferences /

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New Music Concepts 2016 (Hong Kong)

Pitch-class set theory and helix model

Part of the New Music Concepts book series (NMC volume 3)
ISBN: 978-88-6551-221-0

Author(s): Anna Terzaroli

Abstract: The paper suggests a possible intersection between “pitch-class set theory” theorized by A. Forte and “helix model” proposed by M. W. Drobish. This intersection turns out to be an expansion of the concept of "pitch-class set", so that it can express additional information concerning the frequencies under consideration. This combination produces a useful tool, both in musical composition and in musical analysis. The paper reports in its conclusion an example of the use of such instrument by applying it to analyse some excerpts of the piece Nunc of Italian composer Goffredo Petrassi.

Keywords: contemporary music composition, music history, music theory