I didn´t know this (Spanish):
http://www.teatrocolon.org.ar/index.php?id=domingosde_camara
The entrance is free, you can get the tickets two hours before the concert starts in Libertad 621.
http://www.teatrocolon.org.ar/index.php?id=domingosde_camara
The entrance is free, you can get the tickets two hours before the concert starts in Libertad 621.