I agree, its interesting
what I say is meant as constructive criticism only because I think its a good concept
I would consider widening my target audience more to surfers .. here is how/why:
show surfers that they can keep up with the latest breaking artists and download free mp3 samples
let the surfers vote on their favorite songs/bands
encourage them to listen to other surfers favorites and vote on them also
The reason is you'd get alot more traffic and notoriety. If record labels find they can hear upcoming band samples PLUS get 'joe publics' feedback from a large traffic volume site they are more likely to use the service.
When bands hear that record labels are frequenting the site in search of new clients they will be more likely to use the service.
It seems to me it would all be based around free surfer access and their traffic levels making the site 'sellable'.
I'd also consider changing the main page of the site .. condense it down by making a foldout menu to give your descriptions or something. Thats a very long page and makes a person scroll forever imho
good luck