[prionassembly]

Sound is inherently air in motion.

- The humidity in air changes its density and therefore the transmission of wiggly energy. Temperature probably does too, and there's always Doppler effects from running across the house.

- I tried to have phone calls in an empty house and people couldn't understand me, now almost all the walls are floor to ceiling with books and people don't understand me either over Zoom. You push wiggly energy, some of it comes back (or it destroys the building's structural foundations? I can't talk that loud).

- And there's also the whole issue of resonant frequencies. I know the resonant frequency of my head and can use it as reference to sing in tune if unaccompanied; I'm also able to entertain my child by finding the resonant frequency of corridors, elevators and so on. You can learn it too, just try to hum until one note is much louder and maybe rattles some bolted-on things. OF COURSE THE RESONANT FREQUENCY OF AN ENCLOSED ENVIRONMENT CHANGES HOW MUSIC SOUNDS, jesus. It changes how the same song sounds in different keys.

- And there's the issue of having absolute pitch, which, my dad tells me, ruins listening to music in the kitchen.