Podcasting 2.0 is based on lightning keysend payments and RSS. Listeners would need a podcasting 2.0 app: https://podcastindex.org/apps?appTypes=podcast+player

but not many of them support music yet. nostr:npub1yfg0d955c2jrj2080ew7pa4xrtj7x7s7umt28wh0zurwmxgpyj9shwv6vg does. Artists can upload music and people can listen on their website.