"Contact your borough and county councils to ask where you might post details."


Absolutly what not to do. (in my opinion)Don't temp fate. If you bring up the subject of playing music in a pub, some bright spark is gonna start asking about music licences & then the pub may be in trouble. & what the landlord thought would be a few friends playing a few tunes in a corner on a quiet night, suddenly becomes, in the eyes of the Council, is a 'money making music gig'. Keep a low profile re the authorities I say.
As somebody recently said " It's easier to beg forgivness rather than ask permission"
Cheers
Les