The Open UniversitySkip to content


Milne, Andrew; Sethares, William A. and Plamondon, James (2006). X_System. Thumtronics Inc., Austin, Texas, USA.

Full text available as:
PDF (Version of Record) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (2523Kb)
Google Scholar: Look up in Google Scholar


The X_System makes the playing, writing, and learning of music – even when using unconventional tunings – more intuitive, more logical, more expressive, and better sounding.
The X_System allows for:
• different temperaments to be chosen at the flick of a switch;
• tunings to be dynamically altered at the push of a lever;
• the use of a special hexagonal button-field that allows for any given interval or chord always to have the same shape on that button-field;
• consonant chords to have their consonance maximised, whatever the tuning actually chosen;
• radical changes to be made to the timbral character of tones using a minimal number of controls;
• a choice of keyboard mappings, which enable for the balance between number of intervals and octaves to be altered.

Item Type: Other
Copyright Holders: 2006 Andrew Milne, 2006 William A. Sethares, 2006 James Plamondon
Academic Unit/Department: Mathematics, Computing and Technology
Interdisciplinary Research Centre: Centre for Research in Computing (CRC)
Item ID: 21510
Depositing User: Andrew Milne
Date Deposited: 03 Jun 2010 10:24
Last Modified: 25 Feb 2016 08:16
Share this page:

Actions (login may be required)

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340