I have to disagree with this premis for two reasons:
1) Under the ruling it is still illegal to copy songs without permission.
2) No software can copy a live concert.
Furthermore, there are the rights of us software developers to consider. Unless the software was specifically designed for illegal activity, the musicians should have no right to go after us. Do you expect the courts to force musicical products to adhere to the best interests of other industries over their own?
It's not you versus the music people.
You may not see it, but you're next...