Did you ever think about how much music/songs can point to the obsolescence of an idea or a way of life?  My mobile phone appears to be on its last legs, and it reminded me of the episode of Bugs Bunny - 'Little Red Riding Rabbit', where the girl is singing 'The Five O'Clock Whistle'.  Where does a whistle blow at the end of the day anymore?  Fred Flinstone, the Jetsons - those cartoons had a quitting time whistle, but that seems to have gone by the wayside.  Quitting time whistles are so twentieth century!  It's my Video Killed the Radio Star moment.  Try explaining waiting for a radio show like Orson Welles "The Shadow' (with its music that sounds as if it came from a merry go round) to someone today.  While I'm listening, I think I'll download this show to my mp3 player.