Reliable Source: A playlist in honor of this week's Africa summit in D.C.

Is it even possible to cram an entire continent's sound into a listicle? Probably not. With more sovereign countries than the U.S. has states, Africa has too many musical traditions (and modern pop variations) to name offhand. But that didn't stop C. Brian Williams, founder and executive director of Step Afrika!, the locally based and internationally known dance company, from ticking off his favorite songs from the continent for this week's mix. As Washington hosts 51 African heads of state and ...