Four-Part Harmonization: Comparison of a Bayesian Network and a Recurrent Neural Network

Tatsuro Yamada, Tetsuro Kitahara, Hiroaki Arie, Tetsuya Ogata

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

    Abstract

    In this paper, we compare four-part harmonization produced using two different machine learning models: a Bayesian network (BN) and a recurrent neural network (RNN). Four-part harmonization is widely known as a fundamental problem in harmonization, and various methods, especially based on probabilistic models such as a hidden Markov model, a weighted finite-state transducer, and a BN, have been proposed. Recently, a method using an RNN has also been proposed. In this paper, we conducted an experiment on four-part harmonization using the same data with both a BN and RNN and investigated the differences in the results between the models. The results show that these models have different tendencies. For example, the BN’s harmonies have less dissonance but especially the bass melodies are monotonous, while the RNN’s harmonies have more dissonance but especially bass melodies are smoother.

    Original languageEnglish
    Title of host publicationMusic Technology with Swing - 13th International Symposium, CMMR 2017, Revised Selected Papers
    EditorsMatthew E.P. Davies, Mitsuko Aramaki, Richard Kronland-Martinet, Sølvi Ystad
    PublisherSpringer-Verlag
    Pages213-225
    Number of pages13
    ISBN (Print)9783030016913
    DOIs
    Publication statusPublished - 2018 Jan 1
    Event13th international Symposium on Computer Music Multidisciplinary Research, CMMR 2017 - Matosinhos, Portugal
    Duration: 2017 Sep 252017 Sep 28

    Publication series

    NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
    Volume11265 LNCS
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349

    Other

    Other13th international Symposium on Computer Music Multidisciplinary Research, CMMR 2017
    CountryPortugal
    CityMatosinhos
    Period17/9/2517/9/28

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    Keywords

    • Bayesian network
    • Harmonization
    • LSTM-RNN
    • Machine composition

    ASJC Scopus subject areas

    • Theoretical Computer Science
    • Computer Science(all)

    Cite this

    Yamada, T., Kitahara, T., Arie, H., & Ogata, T. (2018). Four-Part Harmonization: Comparison of a Bayesian Network and a Recurrent Neural Network. In M. E. P. Davies, M. Aramaki, R. Kronland-Martinet, & S. Ystad (Eds.), Music Technology with Swing - 13th International Symposium, CMMR 2017, Revised Selected Papers (pp. 213-225). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 11265 LNCS). Springer-Verlag. https://doi.org/10.1007/978-3-030-01692-0_15