Exemptions like those for two performers and music for church services establish the precedent that it is the nature of the music that is being considered. These are not exempt because they are considered safe.

Surely it is just as easy for a local authority to stretch the religous exemption to cover customers making their own traditional music as it is for them to stretch the wording of the law to consider members of the public as performers?

For the former will enable traditional activities and the latter will prevent them.