I stumbled upon this company called Song Bits:
Dave Stewart from the Eurythmics came up with the idea.
The basic premise is that musicians sell "bits" of their songs to fans, and the fan invests in the future of the song and artist by receiving royalty rights commensurate to the investment.
I think this could be very interesting if a bitcoin based version was created. It might be better for artists and fans than a straight v4v model.