Sign it and publish your music to Nostr via indiesats.com and IndieSats autogenerate a RSS feed from Nostr you can add to podcastindex.org.

Nostr + RSS link it to your lightning address and set your music free. No accounts, no fiat, no bullshit, just music and bitcoin.

https://zapstore.dev/apps/naddr1qqgkxmmd9e5kuerfv4ekzarn9eshquqprpmhxue69uhhyetvv9uju7npwpehgmmjv5hxgetkqgspnzhy9x60m7m66rg9c6rhcwev0k66ahllj72xst799l2sar8wy7srqsqqqlsthkzt93