Crammed Discs’ critically acclaimed Congotronics series is a showcase for innovative Congolese street music—and on Tradi-Mods vs. Rockers, Western indie bands and electronic producers step in to make ambitious remixes. English dubstep innovator Shackleton streamlines Kasai Allstars’ “Mukuba Special” with stretched-out vocal samples and drone tones. Boredoms’ Eye transforms Konono No. 1’s “Konono Wa Wa Wa” from a distorted likembe trance into mutant electro-rock. North Carolina’s Megafaun loop the shakers and likembes of Kisanzi Kongo’s “Conjugal Mirage,” adding jazzy harmonies and bluegrass-style banjo.