At the end of the 19th century in the cities of Buenos Aires, Argentina and Montevideo, Uruguay a new musical genre was developing. This new musical genre was then called Argentine Tango. Tango music has evolved from the interaction of many different cultures and continues to evolve and expand into many subgenres. Starting from around 1880 the first traces of Argentine tango began to emerge. (Storia 2005) This occurred through the convergence of the music of the many cultures present in the area. Immigration to Buenos Aires was important at the time and the mestizaje - racial mixing - that took place between Argentines and immigrants led to the creation of tango as music, dance and poetry. (Storia 2005) However, even after its founding, Argentine tango continued to change as time passed. Argentine tango has changed and evolved over time, and therefore has been classified into different periods. The first was the pre-tango period during which the basics of tango were noticed and began to come together, but did not yet fully form tango. This period began in 1880 and lasted until 1895. (Rivera 1976: 10) The works produced in this period were still Spanish tangos, Cuban habaneras, milongos and pre-tangos. (Rivera 1976: 10) The next period in the chronology of Argentine tango is the Old Guard which lasted from 1895 to 1917. (Olsen and Sheehy 2000: 395) During this period tango came together and began to gain some structure. The first tangos created were tangos criollos, which in English translates to Creole tangos. (Romay 2000: 26) The instrument used for the criollos tangos was predominantly the piano. One of these tangos is “El Choclo” ...... middle of the sheet ......iones, 1996. “History of the Argentine tango”. All about tango. 2005. AR Tourism, LLC. May 11, 2009.Olsen, Dale and Daniel Sheehy. The Garland Handbook of Latin American Music. New York: Garland Publishing, Inc., 2000. Real, Juan, Francisco Jiménez, and Raúl Lafuente. The History of Tango: Carlos Gardel. Buenos Aires: Ediciones Corregidor, 1977. Rivera, Jorge. The History of Tango: Its Origins. Buenos Aires: Ediciones Corregidor, 1976. Romay, Héctor. El Tango and its protagonists. Buenos Aires: Bureau Editor SA, 2000. “Tango Music.” Wikipedia, the free encyclopedia. May 10, 2009, at 11:32 UTC. Wikimedia Foundation, Inc. May 11, 2009. Zucchi, Oscar, Héctor Ernie and Luis Sierra. The History of Tango: El Bandoneon. Buenos Aires: Ediciones Corregidor, 1977.