Can you think of any songs that were very common / often heard in their day (first six months or weeks of their release) but almost never heard/played now?

Fantastic Day by Haircut 100.

https://m.youtube.com/watch?v=vMTEtDBHGY4

Boston’s “More Than a Feeling” “Mandy” by Barry Manilow “Another One Bites the Dust” (one of my favorites) by Freddy Mercury, anything by “Foreigner” “Annie’s Song” by John Denver and well, too many to mention.

We don’t hear much by Air Supply anymore. Very many 1980–1983 memories (a couple of 1984 hits).

Arthur’s Theme (Christopher Cross) from late 1981

Kissing the Pink – The Last Film
Alphaville – Big in Japan
Johnny Hates Jazz – Shattered Dreams
The Goodies – Black Pudding Bertha

I’d say the airtime received by “People Get Ready” by Jeff Beck/Rod Stewart, didn’t quite reach ubiquity, but I did see it on one of the mainstream 80’s video shows (Goodnight LA or Friday Night Videos) that I watched.

I haven’t heard the song or seen the video lately.

Country Road – John Denver

You light Up My Life – Debbie Boone

Tie a Yellow Ribbon – Tony Orlando

Bunches of ABBA songs, although Dancing Queen is still played.

Whip It – Devo

Kryptonite – 3 Doors Down

There are so many. I could probably list 100.

For a short while at the end of the 1950s there were several songs about death. I thought at the time I would be glad if I never heard that crap again, and fortunately I never did. Here is one example of the genre.