Bringing together two harmonic instruments like the piano and the guitar has never been an easy task. It requires great mastery, humility, and sensitivity to prevent them from competing with each other. With different tuning systems, sizes, and ways of building chords, it is crucial that there is a common chemistry and a shared desire to make music together so that the result does not become a nightmare. Fortunately, there are positive examples that demonstrate that this combination can work wonderfully. In the realm of jazz, the beautiful albums of Bill Evans with Jim Hall in the 1960s are an example. In tango, the duo of Horacio Salgán and Ubaldo De Lío, who played together for almost half a century, is another notable example. Listening to Zárate - Sánchez inevitably evokes these historic duos, as they manage to blend traces of jazz harmony with the rhythmic language of tango in a unique way. Cristian Zárate on the piano and Leonardo Sánchez on the guitar are true musical brothers. They know each other so well that, as happens with years in couples, they end up resembling each other. Their complicity is reflected in the beautiful versions of tango classics like "A don Agustín Bardi" and "Los mareados," as well as in their own compositions that do not ignore Piazzolla's influence on urban music.