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Do androids dream of electric chimera?

Gifford, Toby & Brown, Andrew R. (2009) Do androids dream of electric chimera? In Sorensen, Andrew C. (Ed.) Improvise: The Australasian Computer Music Conference 2009, Australasian Computer Music Association (ACMA), Brisbane, pp. 56-63.

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Abstract

This paper describes the use of the Chimera Architecture as the basis for a generative rhythmic improvisation system that is intended for use in ensemble contexts. This interactive soft- ware system learns in real time based on an audio input from live performers. The paper describes the components of the Chimera Architecture including a novel analysis engine that uses prediction to robustly assess the rhythmic salience of the input stream. Analytical results are stored in a hierarchical structure that includes multiple scenarios which allow ab- stracted and alternate interpretations of the current metrical context. The system draws upon this Chimera Architecture when generating a musical response. The generated rhythms are intended to have a particular ambiguity in relation to the music performance by other members of the ensemble. Ambi- guity is controlled through alternate interpretations of the Chimera. We describe an implementation of the Chimera Ar- chitecture that focuses on rhythmic material, and present and discuss initial experimental results of the software system playing along with recordings of a live performance.

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ID Code: 29980
Item Type: Conference Paper
Keywords: algorithmic music, computer music, music perception, music representation
ISSN: 1448-7780
Subjects: Australian and New Zealand Standard Research Classification > STUDIES IN CREATIVE ARTS AND WRITING (190000) > PERFORMING ARTS AND CREATIVE WRITING (190400) > Music Composition (190406)
Australian and New Zealand Standard Research Classification > STUDIES IN CREATIVE ARTS AND WRITING (190000) > PERFORMING ARTS AND CREATIVE WRITING (190400) > Music Performance (190407)
Divisions: Current > Research Centres > Australasian CRC for Interaction Design (ACID)
Current > QUT Faculties and Divisions > Creative Industries Faculty
Current > Schools > Music & Sound
Copyright Owner: Copyright 2009 the authors.
Deposited On: 25 Jan 2010 16:04
Last Modified: 01 Mar 2012 00:09

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