Tango is The most famous type of dance style in Argentina. The Tango Dance originated in Buenos Aires, the Argentine tango is now known throughout the world. Musically it has a binary form (theme and chorus) and 4/4 time signature (although it is called “the rhythm of two by four”). Classically it is performed by a typical orchestra or sextet and recognizes the bandoneon as its essential instrument. Tango Declared Intangible Cultural Heritage of Humanity (PCI).