ᐅ Effective soundproofing elements near the property boundary – any recommendations?

Hello everyone!
We talked again with the neighbors (about the metal shed issue, some of you might remember) and have easily agreed that we want to build a privacy screen on our side so we don’t have to deal with the shed view from the terrace.
Now, this property boundary is longer than just the length of the shed. The original idea was to enclose the rest with a hedge.
That is no longer what we want, but the neighbor will plant their hedge right on the boundary, which is fine. We will also put something along the boundary on our side, but we are still unsure what.
The neighbors on this side like it a bit louder in the garden, mostly music. They have this speaker box with heavy bass on their porch that somewhat ruined our Father’s Day. Just to be clear upfront: No, I don’t want to and shouldn’t complain to the neighbors – I’m sensitive to noise and get annoyed quickly.
Our problem is that this is a new development area and everything is still very open. The bass from the speaker hits directly against our house wall, and even with closed blinds (and who wants to keep the blinds closed all day), it pounds noticeably in the living room. I don’t want to have to keep the TV on constantly to “compete with the noise,” and it’s really hard for me to just “not listen” to it; I’d simply prefer not to have that in my living room.
Now we are considering what we could build or plant in the garden along the boundary that would absorb sound effectively.
A nice brick wall came to mind, but even a rough calculation makes it quite expensive (even if I try to build it myself): 22m x 1.80m at 50€/m² (around $54/ft²) adds up to about €2000.
Cheaper would be wooden privacy fence panels, which I also find very attractive visually, but do they absorb sound well? Or panels covered with plants?
Do you have any other ideas?

Father’s Day is once a year. If it were every day, I would already consider talking to the neighbor. Maybe it would help if the speakers were directed the other way. Even 1.8 m (6 feet) high walls do little to block sound.

hanghaus2000 schrieb:

Father’s Day happens once a year. If it were every day, I would definitely try to talk to the neighbor. Maybe just turning the speakers in the other direction would help. Even 1.8 m (6 ft) high walls do little against sound.

It’s not specifically about Father’s Day; they often have it on. As I said before, it’s probably within the allowed limits. I’m just sensitive to it, so my question is: What helps?

Thick skin. Or different neighbors.

In case of doubt, the only solution is to enclose the terrace, creating a cold winter garden made of glass. When the neighbors are inside, you can open the sliding doors wide.

Scout schrieb:

If in doubt, the only solution is to enclose the terrace, creating a cold conservatory made of glass. When the neighbors are inside, you can open the sliding doors wide.

Or like in "Under the dome".