Puerto Rican composer. Aponte-Ledée received a degree in composition in 1964 from the Conservatorio Real de Madrid, where his professors included Enrique Massó, Emilio López, Cales Otero, and Cristóbal Halffter. With a scholarship from the Latin American Center for Higher Musical Studies he continued his graduate studies with Alberto Ginastera and Gerardo Gandini in Buenos Aires at the Instituto Torcuato di Tella. Aponte-Ledée belongs to the generation following self-proclaimed nationalist composers such as Campos Parsi and Amaury Veray. He and other Puerto Rican composers of his generation privilege the use of avant-garde compositional techniques. Although he adheres to Puerto Rican nationalist ideals Aponte-Ledée does not search intentionally to express a national identity through music. In his compositions, he has experimented with serialism, aleatoric music, indeterminacy, electronic music, atonalism, pointillism, and extended instrumental techniques with string, woodwind, and brass instruments. When using popular music rhythms and melodies, he employs quotation as a technique that intends to challenge musical stereotypes. In 1967 he founded Fluxus Group of Puerto Rico, along with Francis Schwartz, with the purpose of disseminating contemporary music. Both composers have been instrumental in promoting avant-garde music in the island and throughout the Caribbean. In 1978 Aponte-Ledée organized the first biennial of the Sociedad Puertorriqueña de Música Contemporánea. He has been a music theory and composition professor at the Universidad de Puerto Rico and at the Conservatory of Music of Puerto Rico (1968–73).