Exploratory analysis on expressions in two different 4/4 beat patterns

Kyungho Lee, Michael J. Junokas, Mohammad Amanzadeh, Guy E. Garnett

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Advanced low-cost highly accurate sensing technology has transformed gestural interfaces making the recognition of qualitative and expressive content in musical gestures more vital than ever before. Seeking insight into designing rich interactions that support creative, flexible, high bandwidth control and communication, we chose ensemble conducting as a potentially deeply informative paradigm. We performed an exploratory analysis of qualitative aspects of conducting gestures that reveals an important role for the intra-beat variance of time derivatives of the position of the right hand and wrist. In our simplified conducting trials, these correlate well with expressive qualities of the beat at a fundamental level. We analyzed the sostenuto and staccato articulation styles of a focused conducting experiment. The articulation styles were conducted in 4/4 beat pattern at two tempos, one beat per second (60 BPM) and two beats per second (120 BPM). From these beat patterns, we extracted primitive movement features, which were analyzed using Naive Bayes classification. Our results demonstrate that our approach effectively captures unique characteristics of each articulation style tied to subtle changes within each beat.

Original languageEnglish (US)
Title of host publication41st International Computer Music Conference, ICMC 2015
Subtitle of host publicationLooking Back, Looking Forward - Proceedings
EditorsRichard Dudas
PublisherInternational Computer Music Association
Number of pages4
ISBN (Electronic)0984527443, 9780984527441
StatePublished - 2015
Event41st International Computer Music Conference: Looking Back, Looking Forward, ICMC 2015 - Denton, United States
Duration: Sep 25 2015Oct 1 2015

Publication series

Name41st International Computer Music Conference, ICMC 2015: Looking Back, Looking Forward - Proceedings


Other41st International Computer Music Conference: Looking Back, Looking Forward, ICMC 2015
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Music
  • Media Technology
  • Computer Science Applications


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