Ok! I'm turning 62 a week from tomorrow. What that means in terms of "typical music" is that I went to high school between 1977 and 1981 so under what I've read, the music that most people remember the best is the music that they were listening to during their teenage years.
Sixteen to twenty-two. And not quite. Those are the ages that most people are most aware of the then-current music.
Let's see. That means that someone who is 55 years old now graduated from high school 7 years after I did, or in 1988. The music that person is most likely to remember the best is music that came out between 1984 and 1988 while he/she was in high school.
Actually, their peak awareness (and again, it's most people, not universal) would be 1986 to 1992.
As I've mentioned before, there is also fairly high awareness of music before and after (for most people up to 35 or older). 14 is so close to 16 that it's near-peak.
Putting this in radio terms, stations focused on 1980s music (either as an 80s station, a classic hits station, or an adult hits station) should be doing well.
There is a difference between music you were aware of at the time and music that is still memorable today.
There is also a difference between music you liked in those years and music that you'd want to hear on the radio today. Or may be a difference, anyway,
In my case, there are many songs I can think of that came out in my 30s that I'd infinitely rather hear than a hit from when I was 19.
I saw recently where KRTH was going to drop the 1970s songs from its playlist but nothing was said about dropping the 1980s entries.
KRTH (and most successful stations) does not make decisions about what to play and not play based on calendar dates. They research the appeal of the records TODAY among their target audience (which, to hit the 25-49 demo target, should be someone in their late 30s-early 40s, not their mid-50s).
Put another way, those people who are 55 today are still being well-served by radio as The BigA noted above. It really isn't until you get to the 65-years and older (and for nutcases like me who most prefer the music of the late 1960s and early 1970s) that you see radio turning away because of ad agencies no longer showing interest.
Yeah, but they're not really trying to serve us (I'm seven years older than you, Ted). It's just our good fortune that exposure in TV, movies, commercials and online have exposed and preserved popularity for some of "our" music among a group of people 25-30 years younger.
(EDIT: Ted, somehow I zoned the fact that I actually replied to your post last week, making many of those points. Oops! Meantime, that puts us closer to your birthday, so---Happy Birthday!")