@ChadF and 33 others since Wavlake don't support feed redirects - the best thing for Artists if they want to switch to self-hosting is to delete their content from Wavlake after they've setup new feeds on Music Side Project.
However if not done correctly this creates another issue of duplicate artist profiles in Fountain and other apps. Maybe Music Side Project could have an "Import from Existing Feed" function that maintains the publisher, album, and track guids?
The most important thing is that the guids stay the same - if this is the case we can resolve duplicates on our side easily without losing any of the nostr data.