"The deadly gold wars of Lesotho" would probably have been a more accurate title. There seems to be politician and police involvement as well. So it's fair to guess that this is really a struggle over economic power in an area where there's no independent judiciary and police and politicians are involved in the cash flow generated by the 'illegal' mining activity.
It's also the BBC, the state propaganda organ of the UK, comparable to Russia's RT, and so they don't mention the interesting and relevant fact that the major foreign outfits mining in Lesotho are UK firms, and they're probably pulling most of the profits out of an impoverished country, paying kickbacks to the politicians, good 'ol colonial extraction style:
https://en.wikipedia.org/wiki/Mining_industry_of_Lesotho
But no, says the BBC it's about the music. Come on, now. It's more like cartel drug wars on the Mexican border, yes, they have narco-music too, but nobody claims that's what they're fighting over.