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William Teixeira
Federal University of Mato Grosso do Sul
Brazil

William Teixeira is a cellist and professor of Performance Studies at the Federal University of Mato Grosso do Sul, in Brazil. He holds a BA in Cello Performance by the São Paulo State University, MA in Music by Campinas University and PhD in Music by São Paulo University. As a cellist he is mostly dedicated to the performance of Contemporary Music, and has premiered dozens of pieces of several generations of Brazilian composers, including performances as a soloist with the Campinas University Orchestra and the São Paulo University Chamber Orchestra. As a researcher he has published several articles and chapters and read papers in conferences in United States, United Kingdom and Portugal about his research on philosophical aspects of musical performance, particularly in its link with Rhetoric.

Silvio Ferraz
University of São Paulo
Brazil

Silvio Ferraz is composer and professor of Musical Composition at the São Paulo University. PhD in Semiotics by the Catholic University of São Paulo, he has participated in the seminars of Brian Ferneyhough at the Royaumont Foundation in Paris, and under Gerard Grisey and Jonathan Harvey at IRCAM. His compositions have been performed throughout Europe and in United States at the Sonido das Americas Festival, at the Carnegie Hall. He is a CNPq Research Fellow and has published four books, beyond chapters and articles. Currently, he researches processes of writing with extended techniques and technological processing.