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New Music Concepts 2020

Computational assistance leads to increased outcome diversity in a melodic harmonisation task

Part of the New Music Concepts book series (NMC volume 7)
ISBN: 978-88-944350-3-0

Author(s): Asterios Zacharakis, Maximos Kaliakatsos-Papakostas, Stamatia Kalaitzidou, Emilios Cambouropoulos

Abstract: This paper investigates the potential influence on human creativity resulting by the use of a creativity support tool in the music making domain. CHAMELEON is a computational melodic harmonisation assistant that is capable of harmonising given melodies according to a variety of harmonic idioms and/or their blends. This can offer human users the opportunity to explore a number of different -and potentially novel- solutions for a melodic harmonisation task. An experiment was conducted to evaluate possible effects both at the level of products (i.e., harmonisations) and at the level of user experience (i.e., questionnaires) as a result of interaction with CHAMELEON. Results indicated an increase in the harmonic diversity of the obtained harmonisations as well as an increase in the outcome satisfaction as a result of computational assistance.

Keywords: Creativity evaluation, Creativity support tools, Musical harmony