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Real-time visualisation of fugue played by a string quartet

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Document pages: 8 pages

Abstract: We present a new system for real-time visualisation of music performance,focused for the moment on a fugue played by a string quartet. The basicprinciple is to offer a visual guide to better understand music usingstrategies that should be as engaging, accessible and effective as possible.The pitch curves related to the separate voices are drawn on a space whosetemporal axis is normalised with respect to metrical positions, and alignedvertically with respect to their thematic and motivic classification. Aspectsrelated to tonality are represented as well. We describe the underlyingtechnologies we have developed and the technical setting. In particular, therhythmical and structural representation of the piece relies on real-timepolyphonic audio-to-score alignment using online dynamic time warping. Thevisualisation will be presented at a concert of the Danish String Quartet,performing the last piece of The Art of Fugue by Johann Sebastian Bach.

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