Herramientas 'software' para la interpretación musical
Un método de análisis para descubrir la micro-agógica
Keywords:
Performance Analysis, Casals, Bach, Sonic Visualiser, Cello, AgogicsAbstract
This article sets out a method of analysis for studying rhythmic flexibility in musical performance, with particular emphasis on the study of micro-agogics. With the help of the open-access software Sonic Visualiser, a practical example analysing a world-renowned performer, Pau Casals, and one of his most important audio recordings, the Cello Suites by J.S. Bach, is presented. The following paper examines the key points of performance analysis of micro-agogics in the interpretation of Prélude BWV 1007; an ideal work for this type of study as the prevailing notation is the repetition of semiquavers in 651 of the 654 notes. Five levels were analysed taking into account the compositional structure of the Prélude, levels that go from the duration of each note up to the duration of the bar. The small differences in timing that are produced between the notes of the same rhythmic value are the cornerstone of a rubato structure at different levels that make up the final resulting sound of this masterful performance. According to the results, Casals respects the written notation at the same time as producing a varied interpretation of the music by Bach.
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