This week AL Jezeera send out this reportage:
Argentina’s campaign to protect tango heritage
The 2010 International Tango Festival has just concluded in Argentina, and it paid special tribute to the bandoneon, the instrument that gives the dance its unique sound.
But the distinctive sound of the tango as we know it could be under threat.
In [...]

Today I found this interesting clip in the internet:
“BBC news | Tango recordings go digital”.
The musical history of Tango is being preserved as part of a project in Argentina.
There are plans to safeguard all recordings ever made in a digital archive, so that the music will eventually be available online.
Candace Piette reports from Buenos Aires.
Source: [...]

El Bandoneón
The bandoneón is a type of concertina particularly popular in Argentina and Uruguay. It plays an essential role in the orquesta tipica, the tango orchestra. The bandoneón, called bandonion by its German inventor, Heinrich Band (1821–1860), was originally intended as an instrument for religious music and the popular music of the day, in contrast [...]