Living in France since 1988, Elsa Justel (Mar del Plata, Argentina, 1944) had degrees of Professor in Music Education and Choral Conducting from the Conservatory of Mar del Plata. Then she studied composition and electroacoustics in Buenos Aires, then she had her Doctor degree in Aesthetics, Sciences and Technologies of Arts at the University of Paris 8. She has been teaching Avant-garde music at the Conservatory of Mar del Plata, since 1980. Nowadays she teaches Techniques of sound and electroacoustic composition at the University of Marne La Vallée, France. She has received composition awards such as: Video Evento d’Arte, Locarno, Italie (2002, by “Destellos”), Phonurgia, Radio France Culture (2001, by “La Radio, ça détend”), Prix Ars Electronica, Linz, Austria (1992, by “Fy-Mor”), Stipendienpreis of Darmstadt, Germany (1990), International electroacoustic competition of Bourges, France (1989, by “Ichihualasto” and 2002 by her video “Destellos”), Tribuna de Música electroacústica de Argentina (1996, by “Fy Mor”) and Tribuna Nacional de compositores of Argentina (1987, by “Abismos” for voice and live electronics, 1999 by “Feuillage de Silence” for flute, oboe and electronics). Major international festivals which have included performances of her works are the ICMC, (International Computer Music Conference), Festival Synthese of Bourges (France), Ferienkurse für neue musik, Darmstadt (Germany), Elektronischer Frühling, Viena (Austria), New Music Festival (Denmark), L’Espace du son, Bruselles (Belgique), ISEA (International Symposium of Electronic Art), as well as concerts and broadcasts in United States, Europe, Canada, Australia, Hong Kong, Japon and latinamerican countries. She composed music for multi media projects and for the cinema. In 1995 she had a scholarship of the Institut de l’audiovisuel of the University Pompeu Fabra of Barcelone, for her first video production: “La ilusión sensible,” created at ENSEMS Festival in Valencia, Spain. In 2001 she realized the video “Destellos,” created during the Kulturprogramm im Rahmen der Fransösischen Woche, in Stuttgart, Germany. “Destellos” is part of the project in progress titled “Luna de Barro,” based on the effects of light and reflects on different materials.