Regarding "Kicho" by Astor Piazzolla, it is one of the most popular works for solo double bass not only in the world of tango, but also in academic music. This thanks to the great diffusion that the music of Astor Piazolla has had.
The piece was wroten for the bass player of his quintet, Enrique “Kicho” Díaz, who in 2000 was named as double bass player of the century.
The piece was initially presented to the public and recorded in 1970, in a quintet format that was made up of violin, piano, electric guitar, bandoneon and double bass. In this first version, effects such as the buzzer or the 3-3-2 hits are essential. Later, as was characteristic of Piazzolla, this version is modified, since he changes the double bassist after
1972, and he made the versions of his compositions considering the skills and characteristics of his musicians. There are also versions for guitar - double bass, piano - double bass and occasionally violin - double bass or bandoneon double bass, the version with piano being the most popular, especially in the field of academic music.