This set, a journey to the heart of the Tango, also reveals the importance of this music and the full singularity of a language that crosses styles and strikes profound chords in us. + In fact, this set constitutes a quadruple portrait of the Tango, bringing together four recordings from four different ensembles: the Caliente Quartet, the Ensemble Contraste, the Ensemble Astoria and the duo of cellist François Salque and accordionist Vincent Peirani. + This set also traces the evolution of this language, from Piazzolla to Beytelmann, including the byways taken by the Salque-Peirani duo.