Mauritania’s Noura Mint Seymali performs a blend of Afro-pop and desert blues that draws on a deep traditional roots. Her ensemble has traditional instruments at its core — ardine (harp), tidinit (lute), and t’beul (bowl drum) — with Western bass and drum kit to round out the sound. She and her husband Jeiche Ould Chighaly, guitarist, hail from two of Mauritania’s most prominent Moorish griot families, the storied class of musician-historians in West Africa.