I work in the 12th floor of a very large office complex in NYC. I was listening to the music on my iPod, when I turned the volume completely down. I noticed that I am still hearing "something" in my iPod. I press the iPod headset harder into my ear and I can literally hear voices or a DJ talking. Then I hear what it appears to be classical music. Anyone have any theories why I am getting this? I am actually not complaining about it, but just interest to find out what is going on.