We live in a very quiet suburb in a very quiet town, detached houses - so a fair bit of space and we aren't all living on top of one another. Generally it's a quiet neighbourhood full of retired mountain climbers & birdwatchers who like gardening.
Neighbours consistently play really loud pop for a lot of the time they are home. Blasting out from a speaker placed outside in their backyard - so loud you can hear all the words in the street, 5+ houses away. They get their kids (aged 5 & 8) outside and have dancing competitions with lots of screaming and shrieking...
We live next door and it's insanely loud from inside our house.
They openly detest most of the locals as useless f*ing clueless snobs. Us included. So us politely asking them to turn it down isn't going to go well; and various other neighbours asking them to turn it down has gone badly (it's why we know they detest the other neighbours). And it has the potential to get far worse as their kids grow up and independently make the decision to put the music on...
What do we do? We moved here and bought the house and did it up because it was quiet... i have no desire to start an arms race. I just want them to shut up.