This is a pure poem made chacarera, actually, chacarera and poetry shall be considered synonyms, for this is extraordinarily sublime.

León and Sixto were close friends, and they sang together in order to preserve our native language, the Quichua language, to protect it from the Spanish language invasion and also to make people be conscious of its importance for our national identity, there's not much information on this matter in English so decided to write it here for you to know that that was the goal: to spread Argentina's native culture and Argentina's original language. Here I leave a video for you to appreciate León and Sixto's friendship: https://www.youtube.com/watch?v=nuur-nh4wiM

And this is a song León dedicated to Sixto:

https://www.youtube.com/watch?v=TNbqy_OD10w

***Sixto Doroteo Palavecino (Barrancas, province of Santiago del Estero, Argentina, March 31, 1915 - Santiago del Estero, Argentina, April 24, 2009) was a musician and singer of Argentine folklore. He won numerous awards throughout his career, including a Konex Award as one of the best folklore instrumentalists in history in Argentina.

***Santiago del Estero (Spanish pronunciation: [sanˈtjaɣo ðel esˈteɾo]), also called "Santiago", is a province in the north of Argentina. Neighboring provinces, clockwise from the north, are Salta, Chaco, Santa Fe, Córdoba, Catamarca and Tucumán.
The indigenous inhabitants of these lands were the Juríes-Tonocotés, Sanavirones and other tribes. Santiago del Estero is still home to about 100,000 speakers of the local variety of Quechua, making this the southernmost outpost of the language of the Incas. When the language reached the area, and how, remains unclear—it may even have arrived only with the native troops that accompanied the first Spanish expeditions.

***Santiago del Estero Quichua or Santiagueño Quechua (Santiagen Quichua) is a vulnerable dialect of Southern Quechua spoken by 60,000-100,000 people (estimates vary widely) in Argentina. It is spoken in the province of Santiago del Estero. The estimated coordinates are 27°47′S 64°16′W. Long-standing migration has also resulted in the presence of the language in other provinces of northeastern Argentina and in Buenos Aires.
It is 81% similar to other Quechuan languages. There are radio programs in this languages and also a dictionary. There is some cultivation of the language as it is taught in some schools. It uses the Roman alphabet. Its speakers are Native Americans and they mostly work in agriculture. It is the seventh-most widely spoken language in Argentina behind Spanish, Italian, Levantine Arabic, South Bolivian Quechua, Standard German, and Mapudungun. It is the third most widely spoken indigenous language.
There was once another dialect of Southern Quechua in Argentina, that of Catamarca and La Rioja, but it has gone extinct. All were introduced during the Spanish colonial period, as Quechua speakers were transplanted to various parts of the Spanish realm (continuing a practice of the Inca), and Quechua was an official language of Santiago, Catamarca, and La Rioja during the colonial era.