"Walking on Eggshells" is a 24-minute documentary about appropriation, creative influence, re-use and intellectual property in the remix age. It is a conversation among various musicians, visual artists, writers and lawyers, all sharing their views on why and how we use and create culture, and how intellectual property law, originally designed to provide people with incentives to create, sometimes hinders creative production far more than it enhances it. There is more information available on the "Everything is a Remix" Blog
MusOpen where he aims to make available out of copyright classical music and sheet music.
Both of these items are discussed on the Radio 5 podcast "Outriders"