Someone in the building is playing music and I can hear it with perfect clarity. Recently, it's ben happening a couple of times a week. It seems to be Nora Jones stuff--maybe not precisely, but something that falls under auspices of what I'd consider to be 'middle-aged-woman music'.
A college education teaches us that a quick knock on the walls is typical decorum for dealing with such a situation.
But what if the music is coming from the toilet?*
*Here's where I compromise humor for the sake of truth. The music is coming from the bathroom, but it's most definitely coming from the fan vent.