Grooveshark blogs about alternative ways to provide a fair return to artists on downloads of digital music, without burdening the files with DRM:

Amie Street has a unique strategy in which songs start off free and rise in price depending on the number of times a song is downloaded. The more a song is downloaded, the more its price increases. The thought is that users will be more likely to explore music in hopes of discovering a song before it rises in price.

Will digital music users buy into this system, and pay more for a song as its popularity increases?