Tonality Tunes the Statistical Characteristics in Music: Computational Approaches on Statistical Learning

Statistical learning is a learning mechanism based on transition probability in sequences such as music and language. Recent computational and neurophysiological studies suggest that the statistical learning contributes to production, action, and musical creativity as well as prediction and percepti...

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Main Author: Tatsuya Daikoku
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-10-01
Series:Frontiers in Computational Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fncom.2019.00070/full
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author Tatsuya Daikoku
author_facet Tatsuya Daikoku
author_sort Tatsuya Daikoku
collection DOAJ
description Statistical learning is a learning mechanism based on transition probability in sequences such as music and language. Recent computational and neurophysiological studies suggest that the statistical learning contributes to production, action, and musical creativity as well as prediction and perception. The present study investigated how statistical structure interacts with tonalities in music based on various-order statistical models. To verify this in all 24 major and minor keys, the transition probabilities of the sequences containing the highest pitches in Bach's Well-Tempered Clavier, which is a collection of two series (No. 1 and No. 2) of preludes and fugues in all of the 24 major and minor keys, were calculated based on nth-order Markov models. The transition probabilities of each sequence were compared among tonalities (major and minor), two series (No. 1 and No. 2), and music types (prelude and fugue). The differences in statistical characteristics between major and minor keys were detected in lower- but not higher-order models. The results also showed that statistical knowledge in music might be modulated by tonalities and composition periods. Furthermore, the principal component analysis detected the shared components of related keys, suggesting that the tonalities modulate statistical characteristics in music. The present study may suggest that there are at least two types of statistical knowledge in music that are interdependent on and independent of tonality, respectively.
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spelling doaj.art-3995bf12339e42a5a9268471ecf5ad592022-12-21T18:58:40ZengFrontiers Media S.A.Frontiers in Computational Neuroscience1662-51882019-10-011310.3389/fncom.2019.00070467122Tonality Tunes the Statistical Characteristics in Music: Computational Approaches on Statistical LearningTatsuya DaikokuStatistical learning is a learning mechanism based on transition probability in sequences such as music and language. Recent computational and neurophysiological studies suggest that the statistical learning contributes to production, action, and musical creativity as well as prediction and perception. The present study investigated how statistical structure interacts with tonalities in music based on various-order statistical models. To verify this in all 24 major and minor keys, the transition probabilities of the sequences containing the highest pitches in Bach's Well-Tempered Clavier, which is a collection of two series (No. 1 and No. 2) of preludes and fugues in all of the 24 major and minor keys, were calculated based on nth-order Markov models. The transition probabilities of each sequence were compared among tonalities (major and minor), two series (No. 1 and No. 2), and music types (prelude and fugue). The differences in statistical characteristics between major and minor keys were detected in lower- but not higher-order models. The results also showed that statistical knowledge in music might be modulated by tonalities and composition periods. Furthermore, the principal component analysis detected the shared components of related keys, suggesting that the tonalities modulate statistical characteristics in music. The present study may suggest that there are at least two types of statistical knowledge in music that are interdependent on and independent of tonality, respectively.https://www.frontiersin.org/article/10.3389/fncom.2019.00070/fullcreativityMarkov modeln-graminformation theorycorpusprediction
spellingShingle Tatsuya Daikoku
Tonality Tunes the Statistical Characteristics in Music: Computational Approaches on Statistical Learning
Frontiers in Computational Neuroscience
creativity
Markov model
n-gram
information theory
corpus
prediction
title Tonality Tunes the Statistical Characteristics in Music: Computational Approaches on Statistical Learning
title_full Tonality Tunes the Statistical Characteristics in Music: Computational Approaches on Statistical Learning
title_fullStr Tonality Tunes the Statistical Characteristics in Music: Computational Approaches on Statistical Learning
title_full_unstemmed Tonality Tunes the Statistical Characteristics in Music: Computational Approaches on Statistical Learning
title_short Tonality Tunes the Statistical Characteristics in Music: Computational Approaches on Statistical Learning
title_sort tonality tunes the statistical characteristics in music computational approaches on statistical learning
topic creativity
Markov model
n-gram
information theory
corpus
prediction
url https://www.frontiersin.org/article/10.3389/fncom.2019.00070/full
work_keys_str_mv AT tatsuyadaikoku tonalitytunesthestatisticalcharacteristicsinmusiccomputationalapproachesonstatisticallearning