Descoberta Automática de Conhecimento em Interpretações Musicais: Microandamento e Microdinâmica

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The performance of a song in the exactly way it is written on the score tends to sound mechanical and artificial to any musician with a minimum experience. Among the variations made by a musician when interpreting a score, classified as musical expressivity, are: a) microtiming, micro time variations; b) microdynamics, small variations of the notes intensity. Due to difficulty to measure small variations using only the human ear and also to manually examine a large musical corpus, the research regarding music expressivity can take great advantage of computer science. Unfortunately, the majority of studies in music expressivity analyses using the computer is restrict to classic music and the piano pieces. The Informatics Center of UFPE has been developing a pioneering project called "One country one guitar" which has as main goal to study the expressiveness of Brazilian guitar, one of the icons of national culture. Therefore, the scope of this work is to investigate microtiming and microdynamics in Bossa Nova Brazilian guitar. The study attempt, through computational analyses, answer questions as: are there microtiming and microdynamics patterns variations, in Bossa nova guitar? What is the best analyses window to identify them? Are the microtiming and microdynamics patterns influenced by musical time? How similar are the patterns when played by different musicians? Are there a relationship between the rhythmic patterns and microtiming and microdynamics patterns? Using the developed system, it will be shown some results that answer these questions, featuring contributions in both music and computer-assisted musicology domains.

ASSUNTO(S)

computação musical microdynamics microdinâmica microandamento expressividade musical expressive music performance microtiming music computer ciencia da computacao

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