As I approach my 63rd time around the earth track this week I thank God I was alive for the best Era of music ever.
From rockabilly to the girl groups, to the surfing and hot rod groups, Motown, Memphis Soul, Southern Rock and I can't forget what got me started on guitar; Folk music (the fun non-protesting songs i.e. The MTA).
What an era.
Yes, I note the variety of the Top 40 during those times. The genres you mentioned plus the novelty songs, all the great instrumentals (the program I listed to always closes with “Summer Place”), the Hit Paraders (Sinatra, Martin, Day, Bennett, Martino, et al), TSOP, teen idols, and so many One Hit Wonders.
Even some good country crossover hits