For starters, if the artist has a website, they can self-host their art on an RSS feed, share that URL with the Podcast Index and be propagated to EVERY Podcasting 2.0 app out there including Fountain which of course shares here to Nostr. Video is enabled. 

There are DeMu (decentralized music) artists out there already having great success, like the selfhosted performers who pulled in 2 MILLION sats last Sunday during the v4v Battle of the Bands known as The Satellite Skirmish. No platforms required, just protocols and people. 

RSS is a straightforward protocol with the P20 namespace allowing infinite value splits to be added and paid via keysend, plus there's a handy template with comments they could copy when initially setting up:

https://github.com/de-mu/demu-feed-template/blob/master/feed-with-comments.xml