Funny, just randomly found this thread and realised that was me in the tender who told PW to STFU. I was trying to ignore the music but the two kids couldn't sleep. The owner/skipper seemed quite reasonable at the time and i was as surprised as anyone that the music actually stopped!
To put this in perspective, this wasn't a regular or even top end stereo playing music; there was a PA speaker attached a few metres up the backstay going full bore. There's a difference between boisterous partying and deliberately inflicting your music choice on a whole anchorage.
I hope the new owner