Best known for acapella work, Ladysmith Black Mambazo (maybe South Africa’s best-known musical export) lets remixers add mellow instrumentation to the group’s beautifully harmonized male voices. These efforts work best when the remixers go along with the LBM’s natural warmth, as on “Woza Ngihambe Nawe,” which, so help me, sounds like sunshine. But some tracks try too hard to fit into different molds, as with “Inkanyezi Nezazi,” which sounds weirdly like Enigma’s melodramatic “Sadeness (Part 1).” Still, despite the uneven results, the excellent starting material insures a laid-back album worth more than a few listens.