Vals is an Argentinian tango style, the tango version of waltz. Unlike Tango Argentino and Milonga, there are no stopping figures. The Vals is danced in a continuous movement. Tango in the streets of Buenos Aires Tango is a social dance form that originated in Buenos Aires, Argentina and Montevideo, Uruguay. ... For a musical genre, see Waltz (music). ... Argentine tango can refer to: Tango (dance) as a dance style. ... Milonga is a South American form of music, as dance, as the term for the place where tango is danced. ...