Osvaldo Pedro Pugliese was an Argentinian tango musician. He developed dramatic arrangements that retained strong elements of the walking beat of salon tango but also heralded the development of concert-style tango music. Some of his music, mostly since the 1950s, is used for theatrical dance performances. In Buenos Aires, Pugliese is often played later in the evening when the dancers want to dance more slowly, impressionistically and intimately.

Tango is a style of music in 24 or 44 time that originated among European and African immigrant populations of Argentina and Uruguay. It is traditionally played on a solo guitar, guitar duo, or an ensemble, known as the orquesta típica, which includes at least two violins, flute, piano, double bass, and at least two bandoneóns. Sometimes guitars and a clarinet join the ensemble. Tango may be purely instrumental or may include a vocalist. Tango music and dance have become popular throughout the world.