I think Brussels or somewhere plays classical music in the train
stations. Suppose to sooothe the passengers.

I also think the over-reactionay monkeys who manage London Underground
also came up with the idea it reduces graffti and vandalism as a bit
of Beethoven will put off even the hardened teenage thug.
Saying that. The toilets opposite Baker Street station are probably
the cleanest and best enviroment non-metal box toilets I have ever
been in. And they play classical music there. And you don't need a 20p
to get in.