Well, it's not entirely fist-shaking about the 'good ol days'. There has been research done into this that shows that modern music has become more repetitive: https://pudding.cool/2017/05/song-repetition/
But why is repetition considered "bad music"? The mind craves certain kinds of repetition.
I'm big on the electronic music scene here; and once you're in the zone that repetitive four-on-the-floor 120/140bpm dance beat begins to feel like a heartbeat: essential, calming, and deadly if stopped
On another note I recall hearing about some anthropologists who claim that the acoustics of Stonehenge are optimal for repetitive drumming in the 130-150bpm range, suggesting it to be an ancient dancehall for prehistoric techno beats
On that note, I find the best thing about EDM is that that repetition is used as a foundation for musical themes, and that expression is done by subtly changing repetitions to make new themes, then mixing them all together in interesting ways.
I'm big on the electronic music scene here; and once you're in the zone that repetitive four-on-the-floor 120/140bpm dance beat begins to feel like a heartbeat: essential, calming, and deadly if stopped
On another note I recall hearing about some anthropologists who claim that the acoustics of Stonehenge are optimal for repetitive drumming in the 130-150bpm range, suggesting it to be an ancient dancehall for prehistoric techno beats