Auctioning Interests in Songs

Songvest:

What if that song could actually be your song? Now it can.
By connecting songwriters with fans through auctions, SongVest is transforming the music industry. We've created a new patent pending venue for the trading of artists'
intellectual and commercial property—their song rights and associated royalty
streams.
Songwriters, now you can sell your rights to the highest bidder. In
essence, it's payday. And because all transactions are reviewed and managed by
legal and financial experts to make sure they're entirely lawful and future
royalty payments are sent promptly, buyers can play their song all the way to
the bank.

Rolling Stone article.