The humble single has been given a new shot at life, an extension to the lease on its breathing machine, a little more food in its tube. Universal Music and Sony have begun a new policy called "On Air, On Sale" that makes music singles available the same day they hit the airwaves, in theory stemming the tide of piracy by making music available legally more quickly. Of course, the number of people actually listening to those radio stations is also dwindling, and whether or not people really want to buy singles vs. entire albums these days remains to be seen. But, he
