I usually listen to them while grinding for... whatever. Eagle eggs in NIER, arena battles in Resonance of Fate, stuff like that.
You know, I've been an RP gamer since the 8 bit days and I never remember grinding being as bad as it seems to be these days. I mean you spend hours looking for one stupid drop. Maybe it's just that I don't remember it as well, but I'm sure it wasn't always this annoying