As part of my cultural assimilation to Mexico, I paid a visit to the
Tianguis del Chopo, a market for music, clothes, graffiti tools, and accessories for the punk, rock, goth, ska and hip hop crowds. It's the place to find anything anti-mainstream. The Chopo used to be a gathering place for cultural barter, but is now mostly a market. Near the bandstand, though, people were exchanging videos and CDs. It was a good time and I had a great guide, Victor, who's well-integrated in the Rock and graffiti culture of Mexico City.
In the end, though, I only bought 3 CDs, which cannot be easily classified. None of them were Mexican, though (one French, one Afro-Latin group from LA). At least they're not all in English, right?