Russ,

Even though this seems like a 'Brave New World Problem" created by technology, it is really a very old problem--you have always been able to pick up tunes and lyrics, stories, dances by ear, and of course, make of them what you will--what you can use and what you can't is an area that no one is ever sure about--most of the time, people realize that it is more trouble fighting over it than it is worth, and they let it go--we have moved into a time where people think that there is a lot more at stake than there really is though, and so it is now a hot button--