Abstract Elaine Chew 20th March

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A seemingly innocent question by an MIT piano lab student, "What do you mean by key?" launched my fifteen-year scientific foray into the modeling of the nature (structure) and effects (perception and cognition) of tonality that only recently culminated in a book on the subject. In this presentation, I shall summarize my findings, beginning with some motivation for the study of tonality, followed by the inspiration behind the invention of the Spiral Array - a mathematical (geometric) model for the framework of pitch relations that form the basis of tonal structure - and finally, applications of the model, including pitch spelling, (symbolic and audio) key finding, music segmentation, tonal visualization, and modeling of expectation and surprise.

Video link: https://www.youtube.com/watch?v=4GPwVNPuKuA



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