[whitearrow]

The thing with copyright registration is that it's not even strictly required. An eligible work has copyright protection the minute it's fixed in tangible form (written, recorded, whatever).

Registration provides proof of dating and is necessary to file a lawsuit, but you don't need copyright registration before, for example, you publish a book, in order to assert protection later.

There are other ways to establish dating of a work for later protection as well. For example, the songwriter in this article could make a videotape of herself performing the songs after identifying, say, that day's newspaper to the camera and then keeping it within the frame. I think any court would accept that later on as evidence of when she wrote/performed the songs.