Milne, Andrew; Carle, Martin; Sethares, William A; Noll, Thomas and Holland, Simon
(2011).
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| URL: | http://www.springer.com/computer/information+syste... |
|---|---|
| DOI (Digital Object Identifier) Link: | https://doi.org/10.1007/978-3-642-21590-2_14 |
| Google Scholar: | Look up in Google Scholar |
Abstract
In this paper, we introduce a new approach to computer-aided microtonal improvisation by combining methods for (1) interactive scale navigation, (2) real-time manipulation of musical patterns and (3) dynamical timbre adaption in solidarity with the respective scales. On the basis of the theory of well-formed scales we offer a visualization of the underlying combinatorial ramifications in terms of a scale labyrinth. This involves the selection of generic well-formed scales on a binary tree (based on the Stern-Brocot tree) as well as the choice of specific tunings through the specification of the sizes of a period (pseudo-octave) and a generator (pseudo-fifth), whose limits are constrained by the actual position on the tree. We also introduce a method to enable transformations among the modes of a chosen scale (generalized and refined “diatonic” and “chromatic” transpositions). To actually explore the scales and modes through the shaping and transformation of rhythmically and melodically interesting tone patterns, we propose a playing technique called Fourier Scratching. It is based on the manipulation of the “spectra” (DFT) of playing gestures on a sphere. The coordinates of these gestures affect score and performance parameters such as scale degree, loudness, and timbre. Finally, we discuss a technique to dynamically match the timbre to the selected scale tuning.
| Item Type: | Book Section |
|---|---|
| Copyright Holders: | 2011 Springer-Verlag |
| ISBN: | 3-642-21589-0, 978-3-642-21589-6 |
| Extra Information: | The original publication is available at www.springerlink.com
Third International Conference, MCM 2011, Paris, France, June 15-17, 2011 |
| Keywords: | MOS Scales; Well-Formed Scales; Diatonic; Chromatic; Stern- Brocot Tree; Farey Sequence; Fourier Scratching |
| Academic Unit/School: | Faculty of Science, Technology, Engineering and Mathematics (STEM) Faculty of Science, Technology, Engineering and Mathematics (STEM) > Computing and Communications |
| Research Group: | Centre for Research in Computing (CRC) |
| Item ID: | 28690 |
| Depositing User: | Andrew Milne |
| Date Deposited: | 06 May 2011 08:51 |
| Last Modified: | 21 Nov 2019 18:08 |
| URI: | http://oro.open.ac.uk/id/eprint/28690 |
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