Radiofreefedi.net is a super cool internet radio with a couple stations that plays music from fediverse artists, along with a "words" station that plays non-music stuff like podcasts or other kinds of spoken programming
I've really enjoyed it and only learned about it cause someone here on lemmy mentioned it in passing, I thought I'd share so other folks know about it as well :)
Thought I'd comment to add: if you're on android and enjoy using F-droid apps Transistor, and URL Radio are two great apps for listening to internet radio stations like radiofreefedi
I think URL radio is just a fork that was updated to material design 3, but transistor seems more actively maintained :)
I was really surprised how much I liked some of the stuff that came on, there were some seriously cool tracks that played and I had a great time jamming out to it
For those interested in getting into listening to internet radio, see also: https://dir.xiph.org (Icecast network) and https://directory.shoutcast.com (Shoutcast network), both of which have been around for ~25 years at this point if the domain registry is anything to go by. Definitely in their current forms for over a decade.
Caveat: Lots of commercial content and stations, which is, of course, antithetical to Fediverse ideology. Still worth a look if you can't (yet) find what you want in the Fediverse.
(There's also http://radio.garden which has a very pretty interface but has multiple negative points: in-browser only, needs a lot of JavaScript access to station-associated domains on a per-station basis, is HTTP(no S)-only and may not work for stations outside your own country.)