Called it synchronicity, call it a coincidence, call it whatever you like: I was busy uploading this cassette when I saw ElectricJive had posted the next volume in this series.
I gladly refer you to ElectricJive's post, and not just for this post.
I can confirm that there are five volumes in this series, and I will post them all, if you are patient. If I remember correctly I bought these cassettes in the early 1980s in a small shop in Soho, London, together with two volumes of Congolese music from the 1950s. Later on I also found a cassette by Monguito El Unico from the (probably) same source. The rest you can read in my earlier post of the first volume.
Even more than the first volume it has taken a while for me to grasp this music. I think it was after my visit to SA in the late 1990s that I could ´translate´ the atmosphere and feel of these recordings, and connect it to the people. Not that could find a lot of this music when I was there, by the way. But that´s another story....
South African Jive Vol.2: Sax & flute jive