Quote Originally Posted by ThatAuthoringGroup View Post
Record labels would NEVER go for it.

Why do you think there hasn't been any RB games on PC so far?
This.

Also: There's no storefront for the Rock Band catalog on PC (for reasons already given above), and that also means that there's an additional investment that would be required to set something like that up even if record labels COULD be convinced that piracy would not take over (which they won't be).