I grew up in Tokyo as a child and used the subway twice every day to commute to and from school. I randomly sampled a few of these and the memories and feelings it evoked are incredible. Amazing what a difference a small jingle can make to the psyche. Thank you for posting this.
https://tokyobytrain.com/reference/every-yamanote-line-platf...
Takadanobaba has the theme from Astro Boy.