Selling over a million copies worldwide, the 2002 debut by Gotan Project, a French-Argentinean collaborative is still ubiquitous in boutiques and posh hotels. Their latest doesn’t mess with success; it’s more tango- tronica, traditional Argentinean dance music filtered through a DJ mindset. A bit formulaic, but winning; the musty wheeze of the accordion rubbing against the dubbed-out digital grooves has a dusky, romantic appeal. Lunático fleshes out that blueprint with rich arrangements, smoky Spanish vocals, and unexpected flashes of eerie, exotic tension.