Milne, Andrew; Carle, Martin; Sethares, William A; Noll, Thomas and Holland, Simon
(2011).
![[img]](http://oro.open.ac.uk/style/images/fileicons/application_pdf.png)
|
PDF (Accepted Manuscript)
- Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (3975Kb) |
| URL: | http://www.springer.com/computer/information+syste... |
|---|---|
| DOI (Digital Object Identifier) Link: | http://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 Chapter |
|---|---|
| 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/Department: | Faculty of Science, Technology, Engineering and Mathematics (STEM) Faculty of Science, Technology, Engineering and Mathematics (STEM) > Computing and Communications |
| Interdisciplinary Research Centre: | Centre for Research in Computing (CRC) |
| Item ID: | 28690 |
| Depositing User: | Andrew Milne |
| Date Deposited: | 06 May 2011 08:51 |
| Last Modified: | 30 Sep 2016 09:15 |
| URI: | http://oro.open.ac.uk/id/eprint/28690 |
| Share this page: |     |
Altmetrics | Scopus Citations |
Download history for this item
These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.