There is a reason that online platforms did away with DRM. It only led to piracy. If you have a DRM system that relies on an NFT then it has to go online to see if the file is legit. That is a pain in the ass. Plus it can allow tracking as you have to let your device shae information. And let's hope the NFT never goes offline as has already happened to projects including very expensive lifetime Cochella tickets.

Add to that many consumers prefer streaming. Ownership mechanisms are irrelevant if most people rent their music.