Wood privacy fence - planning over the top? Alternatives?

Here is the thread and another possible solution

I know that one, it’s my thread too. :/
I really seem to have a knack for neighbors. Nobody else in the whole neighborhood does this – playing loud music outside in the open. Only our neighbors. If I had that much luck in a lottery, the problem would be solved. :P

Otherwise, they are really nice people, but they just love topless barbecues with loud music, and we love our peace and quiet. I already messaged them on WhatsApp again today because we wanted to watch something on TV and the bass box kept booming in the garden even though they were all inside, meaning there was literally no one outside except the music. :/
As far as I know, listening to music in the garden is not illegal (within certain limits), so I have to try to make it bearable on my side of the property somehow. Moving out is not an option for now. It’s property, newly built, and reversing it with Wohnriester and subsidies and all that is way too much hassle for me.

I have thought about ear protection already, which wouldn’t be a problem in principle, but usually it’s annoying when we want to watch TV or be outside ourselves. Then we want to talk to each other and not sit at the table all wearing noise-cancelling headphones. :/

I believe the real solution lies with the neighbor. Of course, everyone can do what they want, as long as they do not disturb others. But that is the case here. The neighbors simply should not listen to music on the terrace; there is no fundamental right to do so. If it is once a week or occasionally during visits and/or barbecues, but you don't have to endure constant noise, because your rights exist just as well. The problem is—as always—making the other person understand this; laws or measurements won't help you there. You feel uncomfortable, and I would definitely express that politely but clearly and ask them not to play music on the terrace as constant noise. You can offer to provide them with some headphones so they can listen to music.

They also turn it off when I ask them (at least just now, when they were no longer in the garden anyway), but I just don’t want to always be the nagging Hans who complains every week. It’s just that the nice days, when the sun comes out, clash with the days when we ourselves like to sit outside. And I don’t know how to make someone understand that music tastes are different and that what is relaxing for one can be stressful for another. How can you make that understandable to someone who doesn’t seem to get it on their own? I also vaguely remember a story from when they still rented, that there must have been stress with "pingeligen Nachbarn" even then, up to police interventions because of loud music. I wasn’t there and therefore don’t know how loud it actually was, but if I keep complaining about the music in the garden now, I’m the next "pingelige Nachbar," and I don’t really want to be that. They’re usually very nice to us, lay drainage pipes for us, help us out with all sorts of things... they’re really not bad people. I don’t know how to express myself... I think here the assessments of what is “disturbing” are fundamentally different. You know what I mean? I also always get the advice to just play Rammstein as counter noise, for the "learning effect." I don’t think that would help because I think they simply wouldn’t care in the slightest. The most pragmatic thing that occurs to me (besides “talking to them next time we see each other”) is to build something up on my property side. Like Scout said, something substantial. Wood probably won’t help. Maybe bricks or sand-lime bricks? Of course, I can’t legally build it as high as I’d like, can’t build a fortress wall after all. It will still bother me upstairs in the bathroom (I wanted to take a bath earlier, but I can’t relax when bass is coming in from outside)... but maybe with 1.80 meters height and masonry I can at least make the garden quieter? Could that work?

The neighbors simply shouldn't listen to music on the terrace; there is no fundamental right to do so.

Above all, there is no prohibition against it, provided it is at room volume outside of quiet hours.

You could offer to provide them with some headphones so they can listen to music.

I would respond to such audacity with a ban from the house.

I always get the advice to just turn on Rammstein as counter-noise, for the "learning effect".

I don't believe that such a passive-aggressive reaction triggers any learning effect. "At best" it has an escalating effect.

I don't know how to express myself... ic

Since the relationship seems to be quite good, just address it openly. You have already asked several times in the past to lower the volume. But in fact, it bothers you significantly more often than the times when you brought it up. You want to find a permanent solution. Unless giving up the music or significantly lowering the volume is an option, only a wall for soundproofing would be possible.

there is above all no prohibition against it, as long as it is at normal room volume outside of quiet hours

Of course, there is no prohibition, but there is the "expectation" that one should be able to feel comfortable on their own property.
You can measure this endlessly back and forth or consider it overly delicate on one side or rough on the other. The only way is through interpersonal communication or escalation.
I'll put it this way: I used to listen very loudly to "The Four Seasons" every Sunday morning with the patio door wide open. But I knew that my neighbor even liked it; earlier it was more ZZ TOP, and that was different. :)
But if my neighbor had said she was very sensitive to noise, I would have stopped and been careful otherwise. Because... you always see each other two or more times in life...
If my neighbor simply built a big wall on her property, I would have been surprised... maybe the neighbor of would even be annoyed about that... who knows.
There is no textbook solution for such things, but the brutal route rarely leads to a good result, especially if you yourself could never be as rough as what would be considered normal for someone else.
You are in conversation, which is positive to begin with.
Maybe you should actually address your very individual problem clearly and without detours at a quiet appointment, but without blaming them, instead just explaining it with your high sensitivity and telling them that you have even considered a high wall because it really bothers you. As long as you leave the responsibility on your side, they might not feel attacked and maybe they will help you... maybe they simply aren’t that aware of it—you have to say it clearly as it is.
Maybe ask them if you can do something nice for them in return that you would like to do... I would try it in this direction.

I would respond to such audacity with a ban from the house.

Well... of course within a rather funny conversation... and obviously not seriously meant.

I don't think such a passive-aggressive reaction triggers a learning effect. “At best” it has an escalating effect

That's how it is... also you have to want to do it.

In the end, nobody knows the solution or the best way. But they can only understand it if you make it clear to them without any detours... and always WITHOUT accusation, but because of your sensitive little ears...
Still difficult... I understand that.