The fourth solo album from Mos Def, "The Ecstatic," gives listeners exactly what they expect out of such a title: Elaborate production and the slick rhymes of Def laid over some heavy beats. The ...

When the world first heard Mos Def's 2006 album, "True Magic," an offering executed with such apathy that copies were sold without liner notes or cover art, there was plenty of reason to worry that ...