Would this be Folk - or entertainment?

tell me the festival & I will avoid it.

There are times when I am ashamed of my profession. The invention of the amplifier isn't it but cheap mega watt ones is. It does detract from the pleasure I get from designing useful items.

One answer to your question is "PEL" which implies health and safety. For all it's concern to screw money out of organisers the law does not address hearing loss.