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.
Ghais Guevara does I guess internet rap type stuff with some lefty bits and bobs.
Billy Woods is more spoken word experimental rap. Listen to his album Aethiopes. I think it's so content rich that it belongs in a museum. His mother was an English literature professor from Jamaica. His father was a PhD Marxist writer, active in the Zimbabwe War of Liberation. They made a very based son.
King Gizz - Mars For The Rich is a nice vent about rich scum colonising space.
East Coast Avengers aren't that good but I've got a soft spot for them cos it's headed by John Cenas cousin. They don't make music anymore but some of their songs are anti America at least, if totally unaware of actual leftism.
Viagra Boys do a good satire of masculinity too.
I’ll second Ghais Guevara. He’s not only truly talented but constantly mentions lefty stuff and we should be boosting the signal however we can.