Héctor Tosar was a composer, pianist, director, and composition teacher in Uruguay, Puerto Rico, Venezuela, and the United States. One of the best-known Uruguayan composers of his generation, his works have been presented in festivals worldwide. He started studying piano with Wilhelm Kolischer, harmony with Tomás Mujica, and composition with Lamberto Baldi, and completed his studies in the United States and France where he studied composition with Aaron Copland, Arthur Honegger, Jean Rivier, and Darius Milhaud, and orchestral direction with Serge Koussevitzky, Eugène Bigot, and Jean Fournet. The defining characteristics of his works are his use of a compositive principle based on "groups of sounds" and his search for musical communication by means of expressiveness and lyricism. His catalogue includes soloist works, mainly for piano, as well as symphonic, chamber, and vocal works, and, in his last period, compositions with new instruments, such as the synthesizer.

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El presente trabajo pretende indagar en el proceso de realización del primer ciclo de Experimenta, dirigido por Claudio Koremblit, ocurrido entre marzo y noviembre de 1997 en el Centro Cultural Ricardo Rojas de la ciudad de Buenos Aires. Este ciclo permite organizar un primer acercamiento al estudio de esas otras circulaciones de lo sonoro, en un juego de tensiones con el canon musical hegemónico local de la época. El texto intentará registrar las posibles resonancias y divergencias con otros procesos y acontecimientos históricos, en conjunto con la emergencia de incipientes teorías y prácticas sobre lo sonoro tanto a nivel local como internacional.