In reply to:
The question is: since the artists clearly allowed (indeed wanted) the radio station to play their music over the airwaves, in essence providing their music to anybody with a radio for free, would I have been guilty of piracy had I recorded that song off the airwaves and then put it in my empeg?
Although my gut feeling is that there is something wrong with recording a song off the radio, I can't come up with a reason why it would be different than using a VCR to record a movie off TV. Since the Betamax decision declared the latter to be fair use, the former must be as well.
When I
had to have a copy of that song last summer, I went ahead and paid a whopping $4.99 for a used CD.
--John