My neighbours talked to us about the noise coming from our property. OK, my son has a hobby that does make an annoying noise. Since then we have made sure he's doing it less but we obviously aren't going to stop him completely. They haven't said anything since and I think we've been considerate in reducing the number of hours our son does his thing.
It seems like they've now decided that they are allowed to make more noise. We've been neighbours for years and they've always been quiet. Now we get occasional music or radio in their backyard. When I asked them about it they said they have always worn headphones to be considerate but they don't really like listening that way, so they thought it was fair they got to have their hobbies the way they enjoy them best as well.
Would I be unreasonable to complain to them again? There is a difference between children playing and music when they have the option of headphones.