The short version:
Gotan Project—Lunático: 9/10
I just got the new Gotan Project CD Lunático last week, and I didn't want to wait another month before saying on the record that it is very excellent. Gotan Project makes some lovely slightly-electronic tango music, and if you loved their previous CD La Revancha del Tango, you'll love this one too, because it's pretty much the same. I don't really know enough about tango to be able to clearly say what makes Gotan Project different from "normal" tango music. Most of the tango I have is by Astor Piazzolla, and strongly accordion-based. The two Gotan Project CDs are more laid-back and have a more pleasant set of instruments than the meager few other tango CDs I have. The accordion isn't quite so in-your-face, and the production and vocals are excellent. I guess it's just modernized, more than anything.
Of course, the best way to get a feel for what the CD sounds like is to hear a few tracks. The sound is so rich and well-done that it feels like a crime to listen to it in 64kps (or whatever), but perhaps it will encourage someone else to buy the album. You gotta try out Mi Confesión, the best (and only) rap over accordion that I've ever heard. Also excellent are La Vigüela, probably the most electronic track on the CD, though still unobtrusive, Criminal, a fun little song with great bass, and Amor Porteño, one of the more laid-back numbers. (Note that Napster has La Vigüela and Criminal swapped.) You won't like this CD if you hate accordions. Otherwise, give some of those tracks a try. "A+++++ HIGHLY RECOMMENDED WOULD BY AGAIN."