Tango was the song,the music,of the poor Buenos Aires´s "barrios".
After Astor Piazzolla tango became a music with respect in all world.
Caribbean , brazilian music and north America tunes are "muscular" dances, one can dance thinking in other things. Tango is a soul dance, dancers must be in the spirit of this music. Dancers, in shows , look like they do not acknowledge audience , but only their dance.
That´s why I love tango.