On April 21 I caught a screening of "Mama Goema: The Cape Town Beat in Five Movements", at the District Six Museum in Cape Town.  Here's the trailer:

Part of a hip-hop film festival (schedule and more here), which casts its net rather broadly, including the musical roots of Cape Town hip-hop.  Two of the three directors, Sara Gouveia and Calum MacNaughton, were present for a Q&A session after the screening, as was musician Hilton Schilder.  Goema seems to be a type of drum, and a type of music growing from certain musical traditions of the Cape Carnival, but exactly what it is appears to be a bit fluid.  Calum is quoted in Cape Town Magazine saying "Carnival culture is the Goema blueprint and Cape Jazz is its link to modern sound..."  Possibly, it's especially associated with a certain beat, found also in some Brazilian carnival music, as claimed here. Common influences on Brazilian and Cape Carnival culture and music can, I think, be ascribed in part to connections between the two areas via the slave trade. The Cape Carnival is more commonly known as Kaapse Klopse, or---no offense intended, this is one of the most common local names for it---the Coon Carnival. The latter name may derive from the strong influence of minstrel troupes---whether black or white in blackface is not clear---that visited Cape Town in the late 19th or early 20th century. Besides the Carnival music and dancing, there were a couple of revelations for me in the movie---firstly,  the music of Xhosa musician Madosini (who was participating in a performance of a Goema symphony by Mac MacKenzie, and was further featured in the film to represent black African influences on Cape music), and secondly, the music of The Genuines, a 1980s thrash/pop/rock/jazz group of which keyboardist Hilton Schilder and bassist Mac MacKenzie were members and vocalists.

I talked with Hilton and Calum a bit after the event. Calum hipped me to Tete Mbambisa's CD release concert the next day at the University of Cape Town. You can stream---or better, buy---the music Hilton and Mac made with the Genuines at their bandcamp.com page.  Here's their track "Goema" from the album of the same name: