This 2002 video documentary by John and Louise Riber is a laudatory introduction to Zimbabwean singer-songwriter Oliver “Tuku” Mtukudzi. Its format is standard issue, juxtaposing interviews, vintage footage, and live performance to survey a career that spans a quarter century. Mtukudzi recounts his setbacks and triumphs and declares that his politically inflected songs are intended to “diffuse tension.” His band, the Black Spirits, and other associates praise his warmth and his powerful voice. Mtukudzi's music isn't analyzed in depth, but ten of his greatest hits are showcased. In English and subtitled Shona. 70 min. (TS) Mtukudzi & the Black Spirits will be performing this week at various local venues.