Lots of traditional-music recordings thrive when they're at their purest, stripping away influence to revel in a core sound. The exact opposite is the case with the Afro Celt Sound System's sophomore effort, Release, which hits its highest plateaus when it's juiciest and pulpiest, throwing everything into the mix. Hailed for their cross-cultural toss-together of traditional West African and Celtic musics on an electronic backbone, the Afro Celts indulge their digital-age ability to throw African drum patterns behind Uilleann pipes and Irish tin whistle all with a club-ready pulse. Their debut and various appearances at World of Music, Arts, and Dance (WOMAD) festivals cemented their success at this mixological approach, and Release makes the clarity of the group's vision all the more astonishing. Perhaps it's what Irish violinist Martin Hayes has called the "lonesome touch," but the Celtic contribution often squares up as a yearning cry, contrasting vividly with the techno beats and West African drumming. --Andrew Bartlett