The politics of Jonas Gwangwa's music have stayed constant over the years, and are also apparent in the eight albums he has released in South Africa since returning from 30 years of exile.
South African trumpeter Hugh Masekela made an impact across the world during his decades-long musical career.
Sometimes album sleeves reveal little about the music. Instead they illuminate the society it came from, exposing unexpected stories of people, art forms and struggles.
Animalisation remains a malicious and effective form of dehumanisation. Simianisation is a version of this strategy, which historically manifested a lethal combination of sexism and racism.