Desert blues will always be at the core of their sound, but this blind, Malian-born/Paris-based husband and wife duo have adapted to varied pop production techniques without ever sounding slick or money-grubbing. They broadened their audience in 2005 with the footloose Euro-reggae of the Manu Chao-produced Dimanche à Bamako, went for an even brighter sound in 2009 with Welcome to Mali, then collaborated with American rockers like Nick Zinner of the Yeah Yeah Yeahs and Tunde Adebimpe and Kyp Malone of TV on the Radio on Foilia in 2012. Judging from the electronic groove of “Bofou Safou,” their first track in five years, their upcoming album La Confusion may be their greatest stylistic departure yet. But if their past recordings are any indication, the new music will sound like Amadou and Mariam no matter how much their sound changes. All ages.