It is said that a Japanese railway timetable is famous about its punctuality. One day I wondered. "OK, I know its punctuality, too. But how punctual is it?"
So holding my recorder, I took the Yamanote-Line. Because it runs as a circle, and you don't need return home spending long time when the recording is done. It seems good for making a CD that it takes an hour going around Yamanote-Line, too.
First, I tried early trains to keep my recording away from chatting other passengers. But I found young people who spend all night to drink or something tend to take early trains. As a result of various verifications, it turned out that it was good to take a train in Shibuya Station at six o'clock.
I recorded ambient sounds for about a month, selected quiet ones of ten days, cut the sound of chatting or sneezing or coughing, equalized them, and layered them. Finally, I found it is a "metropolitan ambient drone". Because its punctuality, announces sound like echoes. And you may feel like you are in the cave, too.
Please take Yamanote-Line when you come to Japan. And, how about adding another layer onto this recording?