Musicians and new construction - what have you done?

decoupled cabin.
With heavy metal, the dishes jump on the ground floor, even if you don't hear anything.

My mother used to have the same problem with me.

I think it has become clear that this is about sound insulation for a rehearsal room.

Where has that become clear? I'm not sure if this is about a hobby musician who occasionally makes noise and doesn't want to upset the neighbors or if he is also being opposed within the family. Or if I have here someone who wants to practice regularly with a band semi-professionally.

I don't think it is a professional musician because "I'd be itching to do something again" implies to me that he hasn't done anything lately – so for me that rules out a professional.

From that point of view, a specification wouldn't be bad:
- only the neighbors should be protected from too much metallic emissions
- the family finds the OP's musical ambitions on the guitar unbearable and doesn't want to hear anything about it (with the piano in the living room that wouldn't work)
- a truly soundproof room should be created where one can practice loudly at any time and as much as one likes. And then there should be a further distinction: do I always practice alone (there are booths starting at €2,500, but only one person fits in there) or do I want to rehearse with a band. Especially with metal, if the others in the house shouldn't hear too much of it, that's no small matter.

House music: Close the window, that should be enough.

What thoughts did you have and what have you realized or what are your experiences?

We do not have the rehearsal rooms for the different bands and ensembles in the building. If it gets late, the amplified instruments are played through headphones (basses, guitars, Clavinova, drums restricted). During the day, everything can be played. We play all musical styles, but mostly jazz, pop, and funk.