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Consonance in the carillon.

Peter M C Harrison1, James M C MacConnachie1

  • 1Centre for Music and Science, Faculty of Music, University of Cambridge, Cambridge, United Kingdom.

The Journal of the Acoustical Society of America
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PubMed
Summary
This summary is machine-generated.

Real musical instrument tones, unlike artificial ones, alter consonance perception. Traditional consonances like major thirds become dissonant, revealing the impact of acoustic complexity on auditory perception.

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Area of Science:

  • Psychoacoustics
  • Music Psychology
  • Auditory Perception

Background:

  • Previous studies on musical consonance relied on artificial tones, limiting ecological validity.
  • The acoustic complexity of real musical instruments, specifically their frequency spectra, may influence consonance perception differently.

Purpose of the Study:

  • To investigate how the acoustic complexity of real musical instrument tones affects the perception of musical intervals.
  • To examine consonance and dissonance in a continuous range of intervals using carillon tones.

Main Methods:

  • A "dense rating" experiment was conducted with 113 participants rating intervals from 0-15 semitones.
  • Tones from the Westerkerk Carillon were used, capturing the spectral complexity of a real instrument.
  • Computational modeling was employed to analyze the contribution of spectral interference and harmonicity to perceived consonance.

Main Results:

  • Traditional consonances, such as the major third and minor sixth, were perceived as dissonant when using carillon tones.
  • Small musical intervals (0.5-2.5 semitones) were found to be particularly dissonant.
  • Interference between partials (e.g., beating) was identified as a primary cause of altered consonance, alongside a preference for harmonicity.

Conclusions:

  • The spectral characteristics of real musical instruments significantly impact consonance perception, challenging previous findings based on artificial tones.
  • Results support anecdotal evidence from musicians regarding the unique auditory qualities of the carillon.
  • The study underscores the importance of spectral interference in consonance perception, contributing to ongoing debates in auditory psychology.