Here's another quick thought.
Part of the value add of the labels is connecting artists and producers so that the producers can help the artists produce music. Similarly, they help connect recording studios and mastering facilities.
I think the system could be used to connect these people together as well. In addition to providing a direct feedback loop between the subscribers and the artists.
We would need to do some leg work to come up with studios and mastering houses to recommend, but that's just part of the whole relationship building we'll need to do.