I believe you would no longer be able to copyright the track, then. So, you should encrypt the encoded titles, but record an audio track that is a voice recording of you reading out the encryption key for that track. You know, for DRM.

> I believe you would no longer be able to copyright the track

Why? I'm not sure about US law, but here in Poland it would definitely still be copyrighted (even if you'd be effectively granting an automatic implicit license to use that name for the purpose of referencing the work).

My logic is that you cannot copyright a fact. It is a fact you released an album, and it is a fact you titled it such. I'm free to reproduce that information, say in a catalog, without violating copyright.

Being able to reproduce something in particular context without violating copyright does not mean it's not being copyrighted.

It doesn’t matter if he can copyright it, he can still sell NFTs of each album track.