The first time I took the Tokyo subway system I noticed the lyrical little melody that announced that the doors were about to close. A sort of well-tempered Casio clavier running up the scales. I noticed it, but didn’t think much of it. It’s certainly more pleasant than NYC’s generic bing-bong sound, but is nothing to write home about. After all, lots of rail systems have some kind of audio cue. Then I heard the bossa-nova variation at the Harajuku Japan Rail station. Wow! That’s some funky stuff! It turns out different lines have different tunes. They also change the tunes periodically to keep people on their toes. Stay tuned to this station.