Most DJs bitten by a musical bug simply buy up every available record of the genre that's fixated them. Infected by cumbia fever, Britain's Will "Quantic" Holland decamped to Colombia, learned the accordion, the music's defining instrument, and formed his own band. This two-CD compilation is a further result of his grand obsession. Its 55 tracks delve into the roots of cumbia's weezing accordions and shuffling rhythms on Colombia's ragged northern coast, following its elevation into a national music with musicians such as Curro Fuentes and Anibal Velasquez. With sharp packaging and lots of obscurities, it's a magnificent cumbiapedia.