Have the laws been recently changed? I was always led to believe that for any sound pollution to be unlawful it had to reach above certain decibels. As a ceilidh band caller/musician I can remember some village halls having a metre of some sort and if the band's decibels exceeded the allowed amount the band's electricity shut off.

Also for any council nuisance neighbours (and I've had many) we always had to fill in interminable reports over several weeks before any action would be taken, and that was for far worse things than playing music loud. I smell a rat!

Having said that, for me the worse occurrence is when a close neighbour plays loud streamed music with the windows open. Or even worse that dull bass pulse that reverberates through the walls, and you can't even hear the music!

I often practice concertina at home and I live in a terraced council house. Never had any complaints!