For slicethepie.com crowdsourcing starts at a pound

Slicethepie is a financing platform for the music industry that enables new and established Artists to raise money directly from Music Fans and Investors. On Slicethepie, Music Fans take on the A&R role, earning money reviewing tracks, spotting new talent and ensuring the best Artists get put forward for financing.Music Fans can then directly invest in the Artists in return for exclusive Artist access, a copy of the completed album, their name on the album sleeve and a decent share in the financial returns from album and single sales.Investors (non-US only) can trade in and out of their Artist Investments at any time on the world’s first Music Trading Exchange, also hosted on the site.
slicethepie.com