Can you feel it? Evaluation of affective expression in music generated by MetaCompose

Marco Scirea, Peter Eklund, Julian Togelius, Sebastian Risi

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

    Abstract

    This paper describes an evaluation conducted on the MetaCompose music generator, which is based on evolutionary computation and uses a hybrid evolutionary technique that combines FI-2POP and multi-objective optimization. The main objective of MetaCompose is to create music in real-time that can express different mood-states. The experiment presented here aims to evaluate: (i) if the perceived mood experienced by the participants of a music score matches intended mood the system is trying to express and (ii) if participants can identify transitions in the mood expression that occur mid-piece. Music clips including transitions and with static affective states were produced by MetaCompose and a quantitative user study was performed. Participants were tasked with annotating the perceived mood and moreover were asked to annotate in real-time changes in valence^ie data collected confirms the hypothesis that people can recognize changes in music mood and that MetaCompose can express perceptibly different levels of arousal. In regards to valence we observe that, while it is mainly perceived as expected, changes in arousal seems to also influence perceived valence, suggesting that one or more of the music features MetaCompose associates with arousal has some effect on valence as well.

    Original languageEnglish (US)
    Title of host publicationGECCO 2017 - Proceedings of the 2017 Genetic and Evolutionary Computation Conference
    PublisherAssociation for Computing Machinery, Inc
    Pages211-218
    Number of pages8
    ISBN (Electronic)9781450349208
    DOIs
    StatePublished - Jul 1 2017
    Event2017 Genetic and Evolutionary Computation Conference, GECCO 2017 - Berlin, Germany
    Duration: Jul 15 2017Jul 19 2017

    Publication series

    NameGECCO 2017 - Proceedings of the 2017 Genetic and Evolutionary Computation Conference

    Other

    Other2017 Genetic and Evolutionary Computation Conference, GECCO 2017
    CountryGermany
    CityBerlin
    Period7/15/177/19/17

    Keywords

    • Affective Computing
    • Music generation
    • Quantitative evaluation

    ASJC Scopus subject areas

    • Software
    • Computer Science Applications
    • Computational Theory and Mathematics

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  • Cite this

    Scirea, M., Eklund, P., Togelius, J., & Risi, S. (2017). Can you feel it? Evaluation of affective expression in music generated by MetaCompose. In GECCO 2017 - Proceedings of the 2017 Genetic and Evolutionary Computation Conference (pp. 211-218). (GECCO 2017 - Proceedings of the 2017 Genetic and Evolutionary Computation Conference). Association for Computing Machinery, Inc. https://doi.org/10.1145/3071178.3071314