Oliver Mutukudzi’s song Todii is one of the saddest but most beautiful songs to emerge out of the Southern African music scene. Worth a listen; here he is at Tiny Desk concert at NPR performing a quiet acoustic version.
When I was looking up the lyrics and a little bit of analysis I came across this very nice paper by Jennifer Kyker in an edited volume The Culture of AIDS in Africa: Hope and Healing Through Music and the Artst. An excerpt:
Michael Kevane 
This is great!