Subway system harmonics

trains in Tokyo are clean and friendly
The characters of Tokyo and Taipei can be summarized by the musical qualities of their respective subway systems.

In Tokyo, each station has its own happy or calming melody. For example, at Ginza on the Yamanote Line, the little dance that comes out over the speakers makes you involuntarily bop up and down and back and forth -- that is, if you are my strange sister, Wendy. A gentle minor third reminds you politely that the doors are closing.

In contrast, Taipei's MRT is an angry cidada. It chirps sharply and repeatedly, reminding you that you are probably going to miss the train. An aggressive major sixth announces the impending doom of door closure from inside the train.

Maybe I'm projecting.