See also: Guitarrón mexicano
The guitarrón chileno or Chilean guitarron is a plucked string instrument

Plucked string instrument

Plucked string instruments are a subcategory of string instruments that are played by plucking the strings. Plucking is a way of pulling and releasing the string in such as way as to give it an impulse that causes the string to vibrate...

 with 25 strings from Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

. Its origin dates back to the 16th century. It is used to accompany el Canto del Poeta (the Poet Singing), an old chilena folk genre that cultivates décima

Décima

A décima refers to a ten-line stanza of poetry, and the song form generally consists of forty-four lines...

 and improvisation, known as payada. The themes embraced can be distinguished from Canto a lo Divino (solemn, religious, more prepared themes) and Canto a lo Humano (humorous, amorous, social criticism themes).