Osvaldo Francisco Requena (June 29, 1931 – March 25, 2010) was an Argentine tango pianist, arranger, composer, and conductor from Buenos Aires. Requena began a professional career as an arranger for the Raúl Kaplún orchestra in 1951 and performed with ensembles led by Eduardo Del Piano, Atilio Stampone, and Florindo Sassone.Between 1968 and 1982, Requena served as director of the Microfón record label, accompanying artists including Alfredo Zitarrosa. Requena composed the score for the film Los siete locos (1973), which included the pieces “La milonga del rufián melancólico”, “El vals del encuentro”, and “Tango del desorden”. Requena collaborated with musicians including Astor Piazzolla, Leopoldo Federico, and Zubin Mehta. In 1984, Requena became director of the Orquesta Nacional “Juan de Dios Filiberto”. Requena founded a personal trio in 1985 and conducted the Café de los Maestros orchestra. Requena died in Buenos Aires on March 25, 2010.
