Something a little contemplative at week's end

Here's something more than a little different, both musically and visually as well.

Ibeyi -- Yoruban for "twins" -- features twin sisters Lisa-Kaindé and Naomi Díaz, daughters of the late Afro-Cuban percussionist Anga Díaz. The two were raised in France, draw heavily from Yoruba tribal chants and traditions, and as you'll hear from "River," the mix of influences often results in something sounding much like an Afro-American spiritual.