>> in 1992, addis emerged from the stifling 17-year grip of a maoist regime called the derg. since then, the town has been enjoying something of a musical renaissance. but the story of ethiopian music all the way back to the beginning has been about finding ways to skirt authority, to mock it even. to say what you want to say one way or the other. ♪ azmari, ethiopia's original freestyle rappers, have been around for centuries voicing criticism, dissatisfaction, dissent, even when others could not. >> how old?