Not ideal for the PC but I can offer a solid phone solution.
ArchiveTune has all the power of YouTube music, none of the ads or subscriptions.
Not sure how you’re going to import that playlist, but it can sync playlists from YouTube, which might work for you.
And if all they care about is their playlist, playlists can be downloaded, so even if it breaks later, you’d still have it.


Looks sweet! Will check it out myself!
Sorry for the necrobump, I don’t know why my client keeps showing my stuff from 4/5 months ago.
Maybe some sort of ban or defederation shenanigans going on~