The dollar figure I have heard is $10 per month surcharge on all internet accounts to compensate the music industry for illegal downloads. Would legal buyers get a discount - no, what gives you that idea?
A surcharge would be legal if a law says it is legal, no problem. But it is moving beyond that now, as apparent in the article posted by GoQ: Big companies are lining up to offer an internet service and included in the package will be free music. Just like subscription television, except that you end up watching ads as well. Despite the myth, subscription services don't mean adfree services.
Qtrax better have a good set of cards from here on in, imo