It didn't take long to turn the novel clank and grind of Kinshasa junkyard techno assault unit Konono No. 1 into an easy-to-use formula with enormous money-making potential. Suddenly, we have Congotronics 2, showcasing groups from all over the Congo who pound out similar distorto-funk breakdowns, each using Konono No. 1-style electrified thumb piano and megaphone-filtered vocals in slight variations on a future-primitive theme. By conventional music biz wisdom, if Konono No. 1 hit home with jaded North American rock critics looking for an exotic kick, then five more groups that are exactly the same but different will do five times as well. It all comes neatly packaged with a bonus DVD showing the recording sessions, as if to prove that all this music wasn't made by some ponytailed Belgian dude in a basement studio in Brussels.