There is no doubt. If the purposes include entertaining an audience, the entertainment is caught, see Sch 1 para 2(2).

There are two arguments that might defeat this. The first is "de minimis non curat lex" and as is well known (bad taste comparison follows) it does not defeat a charge or rape so why should it defeat one of providing regulated entertainment without a licence?

The second I am not yet publicising 'cos I think it might work so I don't want our guns spiked before time.