Some Nostr music apps let you make an RSS feed but I don't know how much they have been tested. Have you seen my Music site @MSP 2.0 musicsideproject.com? Its RSS first but also lets you add you stuff to Nostr music. @New Music Nudge Unit have been doing this and its been working. Im redoing some stuff right now and about to record an onboarding view since the site has come a long way. You do need your own place to host the files and I'm going to go over using nostr.build in the demo using the $1.50 a month plan.