Electronic tango is causing an authentic revolution in the global music scene. Popular throughout the world, these discs are a must buy for the thousands of tourists who travel through Buenos Aires and other corners of the country where local aficionados are rediscovering their beloved music with a whole new sound. For those who have not yet visited Argentina, it is the latest in exotic electronic music and its status as ''hard to find'' makes it all the more desirable. The electronic tango rage has moved a number of artists to undertake new productions of true artistic value. In the midst of all this hype, Buenos Aires/Paris is the most important album of the genre, the defining double disc anthology with material from top musicians who have provided their best known tracks…