It's only a flash mob if the performers appear, and subsequently disappear, back into the crowd they came from.
If the flautist had suddenly pulled her instrument out of a frozen turkey, tucked away in her shopping bag, then it could conceivably be called a 'flash mob'.
Was there any cost to the tax payer, for these events in the north-east?
Be interesting to know, so we can weigh up the value of art.
