“Quantifying JI” Short talk 1.3: Ashley Walton - Musical Improvisation: Spatiotemporal patterns of coordination

Réalisation : 4 novembre 2015 Mise en ligne : 4 novembre 2015
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When jazz musicians perform an improvisational piece of music their behaviors are not fully prescribed inadvance. Nonetheless their actions become so tightly coordinated and their decisions so seamlesslyintertwined that the musicians behave as a single synergistic unit rather than a collection of individuals. Afundamental aspect of such musical improvisation is the bodily movement coordination that occurs amongthe performing musicians, with the embodied interaction of musicians both supporting and constrainingmusical creativity. Here we consider the ability of pairs of piano players to improvise, to spontaneouslycoordinate their actions with co­performers. We demonstrate the ability of the time­evolving patterns ofinter­musician movement coordination as revealed by the mathematical tools of non­ linear time seriesanalyses to provide a new understanding of what potentiates the novelty of spontaneous musical action.Cross wavelet spectral analysis is applied to the musical movements of pairs of improvising pianists, amethod that isolates the strength and patterning of the behavioral coordination across a range of nestedtime­scales. Additionally, cross­recurrence quantification analysis is applied to the series of notes producedby each musician to assess when and how often they visit the same musical states throughout theimprovisation. Revealing the sophistication of the previously unexplored dynamics of movement coordinationbetween improvising musicians is an important step towards understanding how creative musicalexpressions emerge from the spontaneous coordination of multiple musical bodies.

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CNRS_Pouchet. (2015, 4 novembre). “Quantifying JI” Short talk 1.3: Ashley Walton - Musical Improvisation: Spatiotemporal patterns of coordination. [Vidéo]. Canal-U. (Consultée le 22 mai 2022)

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