I’ve been living in the Bay Area since 2021. I recently moved into a new place on a hill overlooking the city of San Jose. It brings me solace.
In the office building I work from, there are 6 elevators in the elevator hall, labeled from A to F. You press a floor number you want to go on a screen, and it tells you which elevator to wait in front of. When the car arrives, a light above the door blinks, and a speaker rings.
One day, I discovered that some of these speakers ring at a slightly different pitch than the rest. It’s probably just that the speakers have worn out and can no longer accurately reproduce the sound, but it could have been a design opportunity. Since each elevator has an assigned letter which can also refer to a standard musical pitch, so it would be memorable experience for each elevator to ring at that specific pitch. Apart from being just fun, the user can actually develop an intuition of which elevator they should go to without even looking up at the flashing sign.