http://www.southwestbusiness.co.uk/cornwall/events-eco-park/article-3441485-detail/article.html

John King comments:
A Porthtowan "eco-park" has been granted a licence to stage 30 live music events each year. Unfortunately, the council has banned amplification for outdoor events, and has reduced the number of people who can attend to 200.

Explaining its decision, the committee said: "It is considered that reducing the number of those allowed to attend and the conditions in respect of non-amplified music outside, together with the requirement for windows and doors to be closed while regulated music takes place, will alleviate the concerns in respect of public nuisance."

The committee's use of the term regulated music (here for indoor entertainment) is confusing as the outdoor entertainment must also be considered by them to be Regulated Entertainment - or they would be unable to place conditions on it.