So who gets the money?
As an occasional producer of content; songs, images, and written works; I wonder a little how the income from a levy might be distributed. I am, I suppose, in the same long tail as almost everyone who self-publishes through Kindle. It wouldn't astonish me if a levy system never paid anyone but a few well-known names. Amazon publishes the mean income from ebook self publishing, which is arithmetically valid and statistically worthless as a measure.
We already have this problem with the fees charged for the "performing right", covering the radio or TV playing in an office, waiting room, or workshop. Were I to perform one of my own songs, the fee would become due, and I would not see a penny of it.
Woody Guthrie rightly sang that, "Some will rob you with a six-gun, and some with a fountain pen."