I am an enthusiast, definitely not any sort of authority, so please take anything I say with a pocketful of rocksalt, but here’s what I found on the web; a drum kit is regularly quoted as 120dB, so @ 75 metres that would still be 82.5dB, which would still wind up the suitably inclined.
What materials are to be used internally? Plasterboard is about 10kg per M sq, and home studios trying not to bother anyone usually go for a system with a 40kg per M sq in their wall structure.