> The problem is that bass music travels through everything.

It’s not just bass tones—low-frequency vibrations travel through everything. I live in a five-story pre-WWII building, and sometimes, when a neighbor runs their washing machine early on a Saturday morning, I don’t even hear the spin cycle. I just feel it, lying in bed trying to squeeze in a little more sleep. It’s an odd sensation, not painful, but definitely not pleasant.