When I'm playing brain-turned-off games, I usually listen to podcasts and the sort, usually news commentary, but given The News these days, it's not always ideal to just listen to those sorts of things :-[
A couple days back I stumbled upon the Adventure is Nigh! (https://www.youtube.com/watch?v=-TjirjvpnEY&list=PLUBKwq0XD0ue33z9bbhjnLE2lfSxk31Ob) series, which is a D&D podcast, and those tend to be fun, and indeed I quite liked tuning into the first few episodes.
I'm still searching for more sources of background noise for my future gaming and perhaps artistic endeavors, what do you usually listen to?