I always offer tea in a randomly selected cup (3:2 that it will be a cat or a logo of some research lab / company) or professionally served coffee (espresso, ristretto - only after the visual assessment of their CVD risk - or filter). If they refuse, I never use them again.
I think I get the idea of the pipe music. The shower head in my bathroom was leaking for a long time (the last plumber fixed it for free). Instead of getting annoyed at it (dripping cold water on my legs while I was taking a bath), I decided to like it. It played whole symphonies with specific movements coming one after another as the water in it was running out.
If you travel to Japan, listen to their air-conditioning in the bathroom. It makes a pleasant sound with slowly changing vibration, unlike our European noisy incoherent ones. I suspect that's from where their contemporary composers take those unique chimes and vibes