Regarding this problem look at MUSE project based on BitShares
Web http://peertracks.com/

MUSE is an automated, Peer-to-Peer network specifically tailored for the music industry. It is a Membership Organisation in the cloud that aims to be the foundation for the music industry’s new ecosystem. It serves as a global database for copyrights, a means of payment for all music related transactions as well as a tool to simplify licensing of musical works. It provides artists with transparent accounting, automatically split up royalty payments and the capability to create their Notes so they can get discovered and engage their fan bases. Fans can interact, participate and even benefit from the success of their favorite artists!