I really really like the Mexicans. The whiff of hallucination is always in the air.
I've had that Arditti disc of Julio Estrada for what, ten years now? It is some of the most consistently trippy stuff out there. And I just ordered the Arditti disc "Mexico", after listening to the snippets for way to long. I hear the wood, and the dirt, and the sky, and the rocks, in these Composers. The Mexican terrain is very intering that way.
Brazil is totally different. Noctice how Milhaud's music sounds so much like V-L. There is a definite Brazilian sound,... Elis Regina, ahhhh!!
All these Composer's, I think, injected sooooo much freshness into Western Art Music (WAM).
Roberto Sierra,..is he Spanish, or,...??