As a copyright holder in the UK, I have always been silently amused at the US government's way of extorting money from songwriters, as copyright is a right that is free to all and exists without having to do anything other than record or write down your songs.
However, I had a similar idea for reforming copyright laws back in 2004 and that was to make it so that a song was only given copyright if it was uploaded to a central database. (For free of course). Those who wanted to leave their music in the public domain would keep it off the database, and those who uploaded it would get it automatically checked for similarities to other songs so that infringement was no longer a problem. The database would also stream content to people for a membership fee which would be included in the price of an internet connection, with additional fees charged to commercial users. So the "perceived" value of the music would appear free, yet the membership fees would serve to pay all rights holders automatically. Anyone who wanted to evade the system would only be able to get hold of public domain songs, and piracy would no longer be a "viable business" to pursue .
Alas, my idea at the time, was shot down by the industry. So it is somewhat amusing to see that many of the copyright agencies; and now even goverments; are finally coming up with, or putting into practice, some of my ideas.