In the bowels of a former nuclear research bunker, Imogen Heap sits at a piano. As she beings to sing, the small audience for this rare acoustic performance cheer her on. But this crowd is not just simply enjoying the show. They stand to benefit from it too. A recording of one of the two-time Grammy winner’s songs at the concert in Stockholm, Sweden, is to be released for sale online. Embedded within its digital code will be a contract that ensures 150 ordinary audience members receive a portion of the royalties made from the sales. Original Source: BBC