Next door have two kids under 6, and a 100 foot long garden - we almost never hear them outside, or playing.
They don't play music, in the garden anyway - but they do have interminable BBQs in the summer (so many the first year they lived here, we suspected they couldn't afford an oven). Then, you don't hear the kids playing, either but you do hear the parents shrieking abuse at them, and both parents have voices like foghorns. They can't say a sentence without the f bomb liberally sprinkled. My favourite was the woman belting out of the house and yawpsing:
"The fucking garage just rang! The fucking (insert car part here)'s fucking gone."
All this with their then toddlers right there.
Sometimes they get drunk or drugged up, and stand there skriking about which of eachother's friends they'd like to fuck (again, with the kids present).
We also get to hear the man's racist, misogynist comments and basically we know his opinion on every issue as he sits in the garden and sets the world to rights at the top of his voice. He hates foreigners. He particularly hates 'the Poles'. They stole his job (he doesn't have one and I'd have loved a nice Polish family in his house, instead of him). He wants to know why you can no longer keep dogs outside in kennels. He wonders why the EU won't let him shoot house martins as they keep his daughter awake (the bastards, coming to this country, etc etc). And so on. He is about 50 and is full of old fart comments (shouted rants) about things not being what they used to be.
I'd kind of prefer music to the thoughts of one of life's losers, the lovely sounds of domestic violence and the daily calling their kids "cunt" and "little idiot"...
The only time they play music is when the woman is tasked to clean the car (which she can't drive so why she is made to keep it clean I dunno). Then she plays the car radio full blast - Taylor Swift etc. I always think "Why are you identifying with that? Jesus, your sad, squalid life couldn't be further away from that."
As an experiment I tried to hoover our car with some opera full blast (when my nice neighbours were out) and you literally can't hear the music over the hoover anyway - go figure.