Portfolio magazine did an exclusive on Jim Griffin and his new position at Warner. Based on the story and what we are getting on Pho. There appears to be support around the concept of a monthly fee based model that would allow users to have unlimited access to music.

https://www.portfolio.com/news-markets/top-5/2008/03/27/Warners-New-Web-Guru?print=true

The real issue is going to be, will users find workarounds, how will this be enforced, is it optional, or will all users pay this fee regardless. More details to follow. But this could change the music industry.