\-declared tango as Intangible Cultural Heritage in 2009 in response to a joint petition filed by Argentina and Uruguay
\-musical genre that includes dance, music, poetry, and singing and is one of the main manifestations of identity for the inhabitants of the Rio de la Plata region
\-created by the disenfranchised poor who lived in the outskirts of Buenos Aires, many theories about its origin which is often intentionally obscured
\-influences from African candombe, Europe, milonga, Cuban Habanera, and touring Zarzuela theatre companies
\-early tangos in 2, later tangos in 4
\-marked beats but no percussion
\-bandoneon, strings, piano, guitar ensemble (Gardel)
\-free lyrical singing
\-recurrent topics
\-phrases in 4- and 8- bar groups
\-contrasting happy/sad verse and chorus sections
\-different rhythmical accompaniments based on subgenre (habanera, sincopa)