As you all know it is possible and even encouraged to add a link to a video of the song so it'll be easier to find and listen to.
And as you also all know these links often become obsolete as videos are, for various reasons, removed or become unavailable on youtube or any other platform.
So I'd like to suggest that the person who added the song get a notification on when the link becomes obsolete so they may update it, there must be a not so complicated way to check that automatically.
or even something more complicated like an automated search on youtube to find a video with a similar title, which is something that may be not so straightforward to implement, or even useful, but just throwing the suggestion out there.
For me personally it really helps discover new songs ~