When the beholder sleeps, minor warps in reality occur within 1 mile of its lair and then vanish 24 hours later. Marks on cave walls might change subtly, an eerie trinket might appear where none existed before, harmless slime might coat a statue, and so on. These effects apply only to natural surfaces and to nonmagical objects that aren't on anyone's person.
These sliders set site audio only, so you can mix against Discord and other apps (phone volume still caps everything).