sentences:  As a young leading Argentine composer, he was left with a strong impression from many of the principal composers that he met, such as Pierre Boulez, Mauricio Kagel, György Ligeti, Krzysztof Penderecki, Mario Davidovsky, and John Chowning.He has also helped to introduce many composers from around the world to Argentina, including Francisco Guerrero from Spain (1951–1997).However it was with Luigi Nono, who visited Buenos Aires in 1985, that there was a special and shared sense of understanding.