Bruce Eric Kaplan had this map-ish visual allegory for aging musical tastes in The New Yorker. The fact that "easy listening" is a rather dead genre that rarely plays even in grocery stores suggests that this might not be an relevant cliche anymore. I'm not sure that I've ever known older people to purposefully buy and listen to "easy listening". Light rock, sure. Even some flaccid jazz. But "easy listening" doesn't actually seem to enter into peoples' musical tastes.