"The tango ventures into musical extremes: from extremely accentuated, even aggressive and dissonant, to extremely melancholic and expressive. It offers special musical freedoms: the melodies must be rhythmically altered and extended with one's own ideas and phrasings.

In 2006, violinist Christiane Holzenbecher and pianist Sarah Umiger founded the ensemble Tango Sí! with Karin Eckstein on bandoneon and Israel Vázquez on guitar. In contrast to many other groups that associate tango only with Piazzolla, the ensemble delves deeply into traditional tango stylistics."