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The answer is 4 movements.  Alberto Ginastera was conceived in Argentina. He is viewed as a standout amongst the most critical twentieth century established writers of the Americas. Ginastera learned at the Williams Conservatory in Buenos Aires, graduating in 1938. As a youthful teacher, he educated at the Liceo Militar General San Martín. After a visit to the United States in 1945– 47, where he considered with Aaron Copland at Tanglewood, he came back to Buenos Aires and helped to establish the League of Composers.