Over the years, more or less radical comrades have made music and some of it has gained at least some popularity.
The post war period until about the 60s had folk-influenced singer-songwriters of various kinds like say Hannes Wader, Ewan MacColl, il Canzoniere delle Lame, etc.
The 70s had brought new genres to the forefront, with punk, reggae, ska, etc.
The early 80s were a time of a bunch of English new wave Bands singing about the horrors of contemporary capitalism and getting really popular commercially
The 90s still had some leftist music, say the Coup, Manu Chao, Chumbawamba, etc.
But what then? Of course, the quantity decreased because of what happened in 1989-1991, but what's even around?
A bunch of punk, rap and obscure metal, I suppose?
I'd love to see what recommendations you have, comrades.
I think that Section 80, Good Kid Mad City, and and TPAB address the poverty and exploitation of the black community by the government and broader culture in the US.
That's not left though, those criticisms are entirely compatible with liberalism. If that's left then 90% of hip hop artists are left. To be left is to embrace a positive alternative to capitalism.
He wraps up TPAB by interviewing Tupac wherein they discuss the masses rising up and eating the succulent capitalists. He also discussed the contemptible treatment of the poor/homeless on how much a dollar costs and the CIA's role of slinging crack in inner cities on Section 80 and GKMC.